# area, perimeter

20,634 results, page 18

1. ### math214

3-D Shape Assignment Build a three dimensional shape and prepare a set of questions to be presented to the class for problem solving. Questions should encourage students to cover the concepts of perimeter, volume, surface area, number of vertices, faces, and edges associated ...
2. ### math

The area of some shape varies directly with the square of its side. If a shape with 2cm sides has an area 10cm^2,what would be the area of a shape ofthe same type with side of 3cm.
3. ### calculus

1.Ruth has 240 feet of fencing available to enclose a rectangular field. Express the area A of the rectangular field as a function x, where x is the length of the field. 2. For what value of x is the area largest? 3. What is the maximum area?
4. ### Geometry

A circle is circumscribed by a pentagon. The sides are all tangent to the circle. (It's a bit hard to explain without a picture, so I'll do my best.) The pentagon is QSUWY. However, there are points in between all five sides. In SQ lies point R, SU point T, UW point V, WY ...
5. ### algebra2

A package with square ends has combined length and girth(girth is perimeter of a cross section) of 120 in. The surface area of the entire package is 3600 sq. in. Determine the dimensions of the package. s in. * s in.* l in. One solution is: 11.08in. * 11.08in. * 75.68in. Find ...
6. ### Algebra 2

A package with square ends has combined length and girth(girth is perimeter of a cross section) of 120 in. The surface area of the entire package is 3600 sq. in. Determine the dimensions of the package. s in. * s in.* l in. One solution is: 11.08in. * 11.08in. * 75.68in. Find ...
7. ### Calc 2 Urgent Surface Area of Revolution Question

Find the area of the surface generated when y=4x and x=1 is revolved about the y-axis. We have to use the surface area formula of revolution. Integral (2pi*f(x)sqrt(1+f'(x)^2))dx

An archaeologist has set up a dig at a newly discovered site. She and her team start excavating an area that is 36 feet by 24 feet. Because the scientists find many artifacts near the edges of this area, they decide to expand the dig. They add nine feet in all directions to ...
9. ### math - quadratic problems

1. What must be the dimensions of a rectangle to have an area 125m^2 and a perimeter of 60m? 2. In a right angle the hypotenuse is 15cm. if the second side is twice the length of the third side, calculate the exact length pf the shortest side. 3. THe height h metres of a ...
10. ### Geometry

A child is using sidewalk chalk to draw a triangular-shaped area for a game. If the height of the area is twice the base, and the base is 6 feet, wat is the area of the game? I know b=6 & h=2 x base (2x6)..I need help please

A uniform-width boardwalk is built around the inside edge of a rectangular parkland that is 30 m by 5 m. If the boardwalk takes up 20% of the lot, how wide is the boardwalk to the nearest centimetre? I know that the total area= 150m^2 boardwalk area= 30m^2 and the parkway area...
12. ### Math

A magician's stage has a trap door. a. The total area of the stage can be represented by x^2++27x+176. Write an expression for the width of the stage. b. The area of the trap door is 12 suare feet. Find the value of x. c. What fraction of the area of the stage is the area of ...
13. ### (:

help with Quadratic Equations and Functions: 5)Solve 2x2 +6x = 4 by completing the square. 6)Solve 3x2 - 6x- 24 = 0 using the quadratic formula. 7)The area of a circle is 25 in2. What is the radius, including the units? Area of a circle is ¢³r^2. 8)The triangle has an area ...
14. ### Math

Points J and K, plotted on the coordinate grid, are two vertices of rectangle JKLM. Rectangle JKLM has an area of 7 square units. Point J is located at (2, 1) and point K is located at (-5,1) each vertex of the rectangle is located at a point that has integer coordinates. Part...

1. The circumference of a circle is the product of the number π and twice the radius. 2. The area of a square is the square of the length of a side. 3. The perimeter of a square is four times the length of a side. 4. Force equals the product of mass and acceleration. 5. ...
16. ### math

surface area of a rightcircular cylinder. The area of a right circular cylinder is given by the polynomial 2pierh^2 where h is the height and r is the radius of the base. Suppose that a beverage can has a height of 6.2 inches and a radius of 1.3 inches. Evaluate the polynomial...
17. ### math

I need help on this question. Can someone help me get through with these question The area of canada is approximately 1x10(Exponent)7, and the area of Mexico is approximately 2x10 (exponent)6 square kilometers. The area of Canada is approximately how many times the area of ...
18. ### geometry

if angle FGH is similar to angle PQR, FG = 6, PQ = 10, and the perimeter of angle PQR IS 35, find the perimeter of angle FGH
19. ### derivatives

Applications of derivatives A rectangle has its base on the x axis and its upper two vertices on the parabola y=12 - x^2. What is the largest area the rectangle can have, and what are its dimensions. Support your answer graphically. Thanks. Well, the parabola is symettric ...
20. ### maths

the ratio of total surface area to the curved surface area of a right circular cylinder is 3:2 find the volume if its total surface area is 14784 cm2
21. ### math

The area of the bottom of a rectangular box is 316cm squared the area of one side is 168cm squared and the area of the other is 120cm squared. What are the dimensions of the box?
22. ### Math

The area of a 25 inch TV screen is 300 square inches. The area of a 40 inch TV screen is 768 square inches. The area of the smaller screen is what percent of the area of the larger screen? Please and thanks!
23. ### math

which has the greater area? explain. a) a rectangle with area 0.84 meters square. b) a rectangle with area 8400 centimeters square
24. ### Algebra 2

The base of is numerically 3 less than its area, and the height is numerically 6 less than its area. Find the area of the triangle.I am lost.....
25. ### Math

1. What is the remainder when 2^190 is divided by 5? How do I approach these questions; do I write it down on paper, or use my calculator(how do I see the remainder?)? 2. Figure: A large right triangle, shortest base in on the ground, shorter height is vertical, longest ...
26. ### Algebra

a rectangle with perimeter of 198 cm is divided into 5 congruent rectangles. What is the perimeter of one of the five congruent rectangles? i got the expression 5w + 4L = 198 the rectangle has two smaller rectangle on the top facing horizontally on the top and three smaller ...
27. ### math

A wall has an area of 7.2 square meter. It was painted yellow and brown. The area of the wall painted yellow was 3 times as large as the area painted brown. What was the ratio of the area painted yellow to the area painted brown?
28. ### Calc

This summer Borice decides to put a rectangular swimming pool in his back yard. The material he uses for the border of the length of the pool costs \$10 per foot and the material he uses for the width costs \$5 per foot. He would like spend \$1,000 on the perimeter of the pool. ...
29. ### science

Why did a portion of the tabletop get cold when Natasha placed her cold drink on the table? (1 point) The table’s molecules were vibrating more slowly in that area. The table’s molecules had spread further apart in that area. The table’s molecules had gained energy in ...
30. ### science

Why did a portion of the tabletop get cold when Natasha placed her cold drink on the table? (1 point) The table’s molecules were vibrating more slowly in that area. The table’s molecules had spread further apart in that area. The table’s molecules had gained energy in ...
31. ### math

The perimeter of the small square is one-third the perimeter of the large square. What are the side lengths of the squares? small square side = x large square side = x + 2
32. ### Understanding Perimeter

A park has the shape of a trapezoid. Two of the sides are 25 meters long. The other two sides are 40 meters and 20 meters long. What is the perimeter of the park?
33. ### math

A rectangular room is 5 meters longer than it is wide, and its perimeter is 22 meters. a. Letting w represent the width of the rectangle, write an equation that represents the perimeter of the room. = 22 b. Find the width of the room. The width is: meters. c. Find the length ...
34. ### math

A rectangular room is 5 meters longer than it is wide, and its perimeter is 22 meters. a. Letting w represent the width of the rectangle, write an equation that represents the perimeter of the room. = 22 b. Find the width of the room. The width is: meters. c. Find the length ...
35. ### Math

The Dig It Project is designing two gardens that have the same perimeter. One garden is a trapezoid whose nonparallel sides are equal. The other is a quadrilateral. Two possible designs are shown at the right. a. Based on these designs, is there more than one value for x? ...
36. ### Educational Technology

What does it mean to say that a country's land area is positively correlated with its population? a) The larger the land area of a country, the higher its population tends to be. b) The smaller the land area of a country, the higher its population tends to be. c) There is no ...
37. ### math 209

Area of a sail. The area in square meters for a triangle is given by A(x)=x^2 +5x +6. a.) Find A(5) b) if the height of the sail is x+3 meters, then what is the length of the base of the sail when area is x^2 +5x+6m^2?
38. ### Geometry

Find the area of a decagon with side of 4cm. Find the area of a pentagon with side length of 10cm Find the area of a hexagon with radius of 5in.
39. ### Math

The side of 2 square fields are in the ratio of 3:5.the area of the larger field is 576m^2 greater than the area of the smaller field .Find the area of this smaller field?
40. ### maths

the diagram shows the plan view of a swimming pool. The pool has a rectangular swimming area and a semi-circle area with steps. Work out the total surface area of the top of the pool. Giver your answer to 3 significant figures.

The area of a rectangle of length x is given by 3x^2+5x find the width of the rectangle a=l*w =x*(3x+5) I stoped here I am not sure if I am correct i was taken the 3x+5 as the width and x as the length but i am not sure if the 3x+5 should be the area and divid by x the length ...
42. ### math

The perimeter of a rectangle is given by P = 2W + 2L where W is the width and L is the length. The length of a rectangle is 3 more than twice its width. The perimeter of the rectangle is 66 meters. What is the length and width of the rectangle?
43. ### Math

I have a triangle with equal sides. Then a s cons triangle is put in the middle so I have four triangles. Triangles are continued to be put instead so I have more and more triangles. As more triangles are added in the same space, the size of them are getting smaller. Could you...
44. ### Math

Find the area of a regular pentagon if its apothem is approximately 4 ft long and each of its sides are 5.8 ft long. So I tried dividing the pentagon into triangles...but then I came up with the answer 24.41? I know that's not right. Can you hLep me at all? I will be happy to ...
45. ### E.D. Tech Help Please

What does it mean to say that a country's land area is positively correlated with its population? A.The larger the land area of a country, the higher its population tends to be. B. The smaller the land area of a country,the higher its population tends to be. C. There is no ...
46. ### Math

A rectangular field is to be subdivided in 6 equal fields. There is 1200 feet of fencing available. Find the dimensions of the field that maximizes the total area. (List the longer side first) Width = feet Length = feet What is the maximum area ? Area =
47. ### Algebra

The state of Texas has anarea of approximately 266,806 squaremiles. Its area is approximately 220times the area of the state of RhodeIsland. What is the area of Rhode Island? How would you put this into a algebra expession as well?
48. ### math

M and N are the midpoints of the sides of a square. What is the ratio of the area of triangle AMN to the area of the complete square? But the answer has to be in a ratio which is the area of a triangle to the area of the complete square. Also the triangle is in the square at ...
49. ### math

The area of a plot of land is 2496 square meters. A small part of the land is fenced. The ratio of the area of the plot of land to the area that is not fenced is 48:31. What is the area of the land that is not fenced? (5th grade math)
50. ### Geometry

A rectangular grass area ub a park measures 50 yards by 100 yards. The city wishes to put a uniform sidewalk around the grass area which would increase the area by 459 yd ^2. What is the width of sidewalk
51. ### Geometry

A rectangular grass area ub a park measures 50 yards by 100 yards. The city wishes to put a uniform sidewalk around the grass area which would increase the area by 459 yd ^2. What is the width of sidewalk
52. ### Math

A rectangular grassy area in a park measures 50 yards by 100 yards. The city wishes to put a uniform sidewalk around the grassy area which would increase the area by 459 yd^2. What is the width of the sidewalk?
53. ### ALGEBRA

The GARDEN AREA PROBLEM: A designer created a garden from two concentric circles whose equations are as follows: (x+2)2 + (y-6)2 = 16 and (x+2)2 + (y+6)2= 81 The area of the two circles will be covered with grass. What is the area of that section??
54. ### algebra

A coast guard ship patrols an area of 125 square miles. If the area the ship patrols is a square, about how long is each side of the area? Round to the nearest mile.
55. ### Math

There is a football field and the length shows 120 yd and the width is 53 1/3 yd a. What are the dimensions of a football field in feet? b. A chalk line is placed around the perimeter of the football field. What is the length of this line in feet? c. About how many laps around...
56. ### math, calculus 2

Consider the area between the graphs x+y=16 and x+4= (y^2). This area can be computed in two different ways using integrals. First of all it can be computed as a sum of two integrals integrate from a to b of f(x)dx + integrate from b to c of g(x)dx What is the value of a, b, c...
57. ### math

B . . . . . . . . . . . . . . C A Triangle ABC is right angled at A. The area of triangle is = ½bh. The area of the triangle is 3/2x^2 + 10x + 16cm^2 where x is a positive integer. The area of the triangle ABC can be written in the form 1/2 (x+a)(bx + c) . The value of a+b+c ...
58. ### Geometry

A rectangular grass area ub a park measures 50 yards by 100 yards. The city wishes to put a uniform sidewalk around the grass area which would increase the area by 459 yd ^2. What is the width of sidewalk Is it 9.18 feet
59. ### math

how can we find the area of a figure. how can i find the area of this figure. jf=16 cm I can't see the figure, but generally we need to know the sides and angles in order to calculate the area.
60. ### College Geometry

In this assignment, you examine a process that links polygons and circles. You will reach some quantitative conclusions about their respective areas and the relationship between the two. As you know, a regular polygon has sides of equal length and angles that are the same. ...
61. ### math

Find the lateral and surface area of the right rectangular prism whose length is 7 cm, width is 5 cm, and height is 1.5 cm. I got 36 as my lateral area and 106 as my surface area. Is this right?
62. ### math

Find the lateral and surface area of the right rectangular prism whose length is 7 cm, width is 5 cm, and height is 1.5 cm. I got 36 as my lateral area and 106 as my surface area. Is this right?

The area of Walters rectangle is 3/4 the area of Janets.What is the area of Walters rectangle? The area of Janets rectangle is 24in.
64. ### MATH

THE AMOUNT OF CLOTH USED TO MAKE FOUR CURTAINS IS GIVEN BY THE FUNCTION A=-4X^2 + 40X WHERE X IS THE WIDTH OF ONE CURTAIN IN FEET AND a IS THE TOTAL AREA IN SQUARE FEET. FIND THE WIDTH THAT MAXIMIZES THE AREA OF THE CURTAINS. WHAT IS THE MAXIMUM AREA?
65. ### Algebra

If the sides of of a square are decreased by 2cm, the area is decreased by 36cm square. What are the dimensions of the original square? original square: x by x new square: x-2 by x-2 old area = x^2 new area = (x-2)^2 The difference in these area = 36 difference means subtract...
66. ### math

Estimate the cost of the concrete requred to make a concrete sidewalk shaped as follows. (The sidewalk covers 1/4 of the outer perimeter of a circle - from 3:00 to 6:00. The radius from the center of the circle to the outside perimeter is 20 feet. The radius to the inner ...

I have about 5 homework problem that I am stuck on! please help me. The first of 5 is: A rectangular garden is 20 ft longer than it is wide. Its area is 8000 ft{}^2. What are its dimensions? Im not even sure where to start with this one. Next #2: The area of a rectangle is 16...
68. ### math

sin theta = squre roote of 3 over 4 what is the number feared by pythagoreans, since it lies halfway between the only two intergers that can be both the perimeter and the area of the same rectangle Here is a hint. 16 is one of the integers. Calculate the results of 2x2 2x3 2x4...
69. ### Calc.

1000 yds of fence x 1000-x 1. Show that the area function to be maximized is A(x) = ( pi + 4 / 16pi) x^2-125x+62500 2. Show that the critical point of A(x) is x=1000pi/pi+4 3. 1000yds of fencing and y>2r, find the values of r and y that maximizes the area of this new region...
70. ### Algebra

Please help me with this algebra question?!?!?!? Find the discriminant of the equation in terms of p and q. Suppose q<p<0. Tell how many real solutions the equation has. px^2+qx-p I really need help with this math question! And indoor gym room consists of a rectangular ...
71. ### Math

A family put a swimming pool in their backyard the rectangular backyard measures 20 by 12. The area of the pool is 1/6 the size of the area of the backyard. what is the area of the pool? How do I solve this one I multiplied 20 and 12 and got 240. What do I do with 1/6?
72. ### Math - Dividing Radicals

A landowner wishes to construct a fence around a small section of her property. The fence is rectangular and is (3√5)/√7 meters wide and (2√3)/√5 meters long. What is the exact perimeter of the fence? (Recall that the perimeter is the sum of each ...
73. ### Algebra

The US has an area of 0.75 miles squared, and LA has an area of 3,705,000 miles squared. LA's area is N× 10^ (n), where N=____ and n=_____
74. ### math(again)

the ? says "a cone has the surface area of 160 sq. in. If the dimensions are reduced by 1/2,what is the surface area of the new cone?" i just cant seem to find the formula for the surface area of the cone.
75. ### Calculus

Find the exact coordinates of the centroid. y = sqrt[x], y = 0, x = 9. -------------- Is this basically 1/4 of an oval/ellipse? If so then the area would be: pi*9*3, correct? So the X coordinate would equal: 1/Area * Integral from 0 to 9 of (x*f(x))*dx Which equals: (4/(27*pi...
76. ### algebra

The perimeter of the state of Wyoming is 1280mi. The width is 90mi less than the lenght. Find the width and the length. I don't know what formula to use or how to write it. Perimeter = length + length + width + width = 1280 miles OR P = 2L + 2W = 1280 miles (equation 1) width...
77. ### Algebra

A farmer decides to enclose a rectangular garden, using the side of a barn as one side of the rectangle. What is the maximum area that the farmer can enclose with 100 ft of fence? What should the dimensions of the garden be to this given area? The maximum area that can be ...
78. ### math

Find: Two numbers whose sum -10 and whose product is 5. ;;; x+y = -10 x= -10-y xy=5 (-10-y)y=5 -10y-y^2 = 5 -y^2-10y-5=0 y= -9.47213595499958 and y= -0.52786404500042 Two numbers whose sum is 1 and whose product is 1. ;;; y= (-1+ sqrt(-3))/-2 y= (-1 - sqrt(-3))/-2 Find the ...
79. ### Math

The variable W represents the width of a rectangle. The length of the rectangle, L, is 5 less than twice the width. Write an expression for the length of the rectangle in terms of W. Write a simplified expression for the perimeter of the rectangle in terms of W. Find the ...
80. ### algebra/math

I have this figure of a square QRST with an equilateral triangle PQT sitting on top of the square. The figure looks like a little house... My question is if PQ equals 6 cm, then what is the area of the square? Do I need to find the area of the triangle to figure this out? Do I...
81. ### science

For this activity, we had to make cube shaped models to represent cells. Then we had to compare aurafve area, volume, and surface area to volume ratio (SA:V) between the cells. Cell A: length of one side=1cm Surface area= 6cm^2 Volume= 1cm^3 SA:V= 6 Cell B: Length of one side...
82. ### MATH.

Radio station KMA is increasing its radio listening radius from 40 miles to 50 miles. How many additional square miles of listening area, to the nearest tenth, will the radio station gain? I thought it was 10 miles.But it says round.So im a little confused.If you could Help.I ...
83. ### physics

Calculate the density of the balls in this area. Each ball has a mass of 1 kg. Estimate the area taken up by the whole structure by looking in the Parameters Palette for the diameter of the balls and multiplying this by the number of balls on each side. Record below the total ...
84. ### math

The area of a square floor on a scale drawing is 100 square centimeters and the scale of the drawing is 1 centimeter:2ft. What is the area of the actual floor? What is the ratio of the area in the drawing to the actual area?
85. ### Math ASAP

Top Area: 13 square inches Total Surface Area: 346 square inches What is the Lateral Surface Area of the 5-sided prism?
86. ### math

a rectangle has an area of 20 square feet. A similar rectangle has an area of 180 sq feet. What is the ratio of the area of these similar rectangles? Is it 9 or maybe 3000??? Not sure. Please help....
87. ### MATH

What does it mean to say that a country's land area is positively correlated with its population? a) The larger the land area of a country, the higher its population tends to be. b) The smaller the land area of a country, the higher its population tends to be. c) There is no ...
88. ### Algebra

A farmer wants to divide a rectangular plot into five equal strips using 648 feet of fence. (A) draw a labeled diagram of the plot. (B) find the dimensions of the plot that give the maximum area and the maximum area. (C) state why the area is a maximum
89. ### Algebra

a farmer wants to enclose a rectangle garden using the sides of her barn as one side of the rectangle. what is the maximum area which she can enclose with 60ft of fence? what should the dimensions of the garden be to give this area? Max area which she can enclose with 60ft of ...
90. ### Science

For this activity, we had to make cube shaped models to represent cells. Then we had to compare surface area, volume, and surface area to volume ratio (SA:V) between the cells.  Cell A:  length of one side=1cm  Surface area= 6cm^2  Volume= 1cm^3  SA:V= 6  Cell B:  ...
91. ### physics

Find the minimum diameter of a 51.5-m-long nylon string that will stretch no more than 1.01 cm when a load of 68.9 kg is suspended from its lower end. Assume that Ynylon = 3.51·10^8 N/m2 physics - bobpursley, Saturday, October 29, 2011 at 10:32am Hookes Law: elongation= force...
92. ### Math

An inverted right cone, half filled with water. I've only the volume of the entire cone to go from. So the volume of the cone = 1/3 the base area * height I've been told by a friend that the base area of a half scale cone = 1/4 of the larger cones base area; with the height ...
93. ### Math

3. All faces of a table top with the given dimensions (width:20, length:22, height:1)are going to be painted. Which of the following is the surface area of the table top? A. 440 B. 524 C. 880 D. 964 my answer 4. How much less surface area of the table will be painted if the ...
94. ### Math

The bases of a triangular prism are equilateral triangles. The surface area of the prism is 80 square units. If the area of one of the triangular bases is half the area of one of the rectangular faces, what is the area of one of the triangular bases of the prism?
95. ### Math- HELP

There is a triangle inside of a circle. I have to find area of the shaded region which is the circle. So i would have to substract the area of the triangle from the area of the circle. the radius of the circle is 3 inches. I found the area of the circle..it is 28.27 in.^2 I am...
96. ### calc

the volume of a cylindrical tin can with a top and a bottom is to be 16*pi cubic inces. if a minimum amont of tin is to be used to construct the can, what must be the height, in inches, of the can? volume of cyliner is pi*r^2*h do i like take derivitive of something since it ...
97. ### geometry

A classroom has a floor area of 600 square feet. What is the floor area of the classroom in square meters? describe three different correct ways to solve this area problem. Each way of solving should use the fact that 1 inch = 2.54cm. Explain your reasoning.
98. ### Math

The radius of circle A is 9 times greater than the radius of circle B. Which of the following statements is true? A.The area of circle B is 9 times greater than the area of circle A B.The area of circle A is 9 times greater than the area of circle B. C.The area of circle B is ...
99. ### math

Trapezoid ABCD, top and bottom are parallel. Left is 45, bottom is 60, right is 30, top is unknown. Trapezoid EFGH is similar to ABCD, top and bottom are parallel. Top is 10, other sides are unknown. Area of ABCD is 9 times larger than EFGH. What is the perimeter of EFGH ?
100. ### math

A rectangle has sides of 3x – 4 and 7x + 10. Find the expression that represents its perimeter. 3x-4+7x+10= 3x+7x=10x −4+10= 14 10x+14 that is my answer please help You just added two sides, a rectangle has four sides. So the perimeter should be twice what you ...