# area, perimeter

20,615 results, page 30

1. ### Math

An isosceles triangle has a perimeter of (9y-3)cm.what is the length of the two equal sides if its side is(3y-7)cm?
2. ### maths

A shape is made up of a triangle and a rectangle. The perimeter of ABCDE is 46cm. What is the length of AB?
3. ### maths

A regular hexagon has sides each measuring 58mm. Find its perimeter in centimetres.
4. ### Math

The width is 2/3x+10 and the height is 1/3x+5 and the next question asks if the perimeter was 90 what would x represent?
5. ### math

A rectangular piece of land has a perimeter of 250m. If the length is 65m. What is the width?
6. ### Algebra

1. The perimeter of a rectangle is 78 cm. The length is 3 greater than twice its width. Find the dimensions.
7. ### Geometry

"Find the perimeter of the figure, where AC=26, AD=BF, and D is the midpoint of AC. Round your answer to the nearest tenth."
8. ### Geometry

To the nearest tenth, find the perimeter of ΔABC with vertices A(2,4), B(-2,1) and C(2,1). Show your work.
9. ### College Algebra

The perimeter of an equilateral triangle is 36 meters. Find the length of each side.
10. ### 5 th grade math

What is the perimeter of the rectangle. --------23yd--------------- on top and the 14 yd down the side in the middle.
11. ### Algebra

what is the equation of the hyperbola given that the perimeter of the central rectangle is 44 units and its vertices are (7, 0) and (-7, 0)
12. ### Math

The ratio of the perimeters of two similar squares is 5 to 4. If the area of the smaller square is 32 square units, what is the area of the larger square?
13. ### algebra

Hector enlarges a photo 4 by 6 so that measures 12 by 18. The area of tge englared photo is how many times greater than the area of the original photo?
14. ### Area of a triangle

In Triangle ABC b=6cm c=8cm and angle A=60 find the area of a triangle.let AD be the bisector of A where D lies on BC and AD=K show that AD=24root3/7
15. ### Math

The ratio of z sides of two similar polygon is 3:2 the area of the smaller polygon is 24cm square what is the area of larger polygon
16. ### Math: Area of Circles

Find the area of each circle shown below. The image shows a) a circle with the diameter of 20 cm and b) a circle with the radius of 7 m.
17. ### geometry

The height of triangle ACE is 12 and base AE=20. A rectangle is inscribed in triangle ACE as shown in the diagram a) express the rectangle's area as a function of x and y b)Use the fact that triangle ACE is similar to BCD to write y as a function of x. c)express the rectangle'...
18. ### Surface Area

[Given] Fiber Linear Density = 1 denier = 1 g/9000m Fiber Density = 1.14 g/cm^3 [Find..] Fiber surface area in cm^2/g Assume that the fiber strand is a uniform cylinder [Answer] Surface area = 3,150 cm^2/g ....... how do i get to the answer? my professor gives us these notes: ...
19. ### math117

The area of a rectangle of length x is given by 3x2 +5x. Find the width of the rectangle. The area of a rectangle with width t is given by 33t - t 2. Factor the expression and determine the length of the rectangle in terms of t length times width=area, so factor out an x to ...
20. ### algebra 1

A high school wrestling mat must be a square with 38-foot sides and contain 2 circles. Suppose the inner circle has a radius of s feet, and the outer circle's radius is 9 feet longer than the inner circle. What is an expression for the area of the square outside the circle. I ...
21. ### Geometry

I need help with these problems: 11. The 2 captains of the school football team meet with the 3 captains of another team for the coin toss. If each captain shakes hands with each captain from the opposing team, how many different handshakes occur? 14. Find the maximum area of ...
22. ### math --- pls check my work!

help pls asap!!! Check my work! 1. Find the area for the following figure. (trapazoid: bottom base 16.3, top base 5.9, height 4.6) 51.06 m^2*** 74.98 m^2 27.14 m^2 102.12 m^2 2. Find the area for the following figure. (1 point) (triangle: base 20.3, height 6.2) 125.86 cm^2 62....

suppose you made your garden 5ft wide... what would its length be? what would its area be? what would be the area of the left over space in the yard.

Jade is painting a rectangular wall. The wall is 4 1/4 yd long and 2 2/3 yd high. The formula for the area of a rectangle is A=bh. What is the area of the wall? I think the answer is 11 and one thirds.
25. ### Math

The land area of present-day Texas is about 7/20 the present-day land area. What percent of the land area of Mexico is Texas.
26. ### Economics

An early freeze in CA sours the lemon crop, What happens to consumer surplus in the market of lemons? What happens to consumer surplus in the market for lemonade? Illustrate your answers with diagrams Draw initial supply and demand curves for lemons. Because of the freeze ...
27. ### Algebra

The area of the smallest (shaded) square measures 1 square unit. What is the area of the largest square? (there are 7 squares) Please help me!!!
28. ### math

A right triangle has an area of 13 m2. The dimensions of the triangle are increased by a scale factor of 3. What is the area of the new triangle? (1 point)
29. ### Calculus

Given the area of a rectangle is A = LW. If three sides of the rectangle are fixed, I.e. 2W + L = 40, find L and W such that you maximize the area of the rectangle. Is it L=10, W=20?
30. ### Math

I am supposed to find the area of the shaded section of a circle. The circle is cut with two radi with an angle of 60 degrees. Then where the radi touch the circle another line is drawn to connect them. The triangle and the small section between the triangle and the edge of ...
31. ### dressmaking

When preparing patterns,the chest measurement is make horizontally at A) the largest part of the bust B) the widest part of the back C) an area under the arm C) an area between shoulderline and bustline I'm thinking it could be either C or D
32. ### Math

Teo rectangles with dimensions 8cm by 10cm and 9cm by 12cm partly cover each other(see the diagram). the grey area 37cm2. what is the area of the shape marked by dots? How can I upload diagram?
33. ### mathssssSsssss

1.Determine the area of a parallelogram in which 2 adjacent sides are 10cm and 13cm and the angle between them is 55 degrees? 2.If the area of triangle ABC is 5000m squared with a=150m and b=70m what are the two possible sizes of angle C?
34. ### brief calc

Calculate the total area of the region described. Do not count area beneath the x-axis as negative. Bounded by the curve y = square root of x the x-axis, and the lines x = 0 and x = 16 This is under Integrals, i don't know what i'm doing wrong, please help
35. ### south mountain community college

A poster is to have an area of 210in^2 with 1 inch margins at the bottom and sides and a 2 inch margin at the top. Find the exact dimensions that will give the largest printed area.
36. ### Calculus AB: Area Between Curves

Hello! I'm having trouble understanding how I'm supposed to work out this problem. Any help would be appreciated! Find the area of the region bounded by the curve y = f(x) = x3 – 4x + 1 and the tangent line to the curve y = f(x) at (–1,4).
37. ### Geometry

For this project I have to find the indiviual area, the total area,and the quantity of each shape.I get the quantity part.But the indiviual shape you have find the base and height.Then you add the total area from all the indiviual.I don't get.
38. ### math/science

The total surface area of Earth is about 1.97 × 10^8 square miles. The surface area of land on Earth is about 5.73 × 10^7 square miles. Find the ratio of surface area of land to that of the entire planet.
39. ### Algebra

How do you calculate the area of a rectangle. area of a rectangle is length x width.
40. ### Area of triangles

height is 12 inches area is 128 inches squared
41. ### geometry

What is the ratio of the area of sector AOB to the area of sector COD? 1/3,1/4,1/9,3/8
42. ### math area

A rectangular tabletop is 4 ft long and 30 in. wide. Which is the area of the tabletop?
43. ### math

how do you find the area of a hexagon? Here is the formula: Area of regular hexagon: (sqrt3/ 2)(Wsqrd) Where sqrt=square root W=the smallest width of the hexagon sqrd=squared

The altitude of the regular quadrilateral prism is h=13 cm and lateral area is AL = 624 cm2. Find: 1) The Surface Area of the prism; 2) The Volume of the prism. Answer:
45. ### Chemistry

One atmosphere of pressure will push a column of mercury to a height of 760 mm when the closs sectional area of the column is 1.00 cm.what would be the height of the column of mercury supported by the atmosphere if its cross sectional area were 0.500cm? How High would the ...
46. ### Algebra

A rectangular pool was 5 m longer than it was wide. When a brick walkway 1m wide was added around the pool, the area was increased by 36 m^2. Find the dimension of pool itself. Dimension of pool: Length= x Width= x-5 So I know the area= x(x-5) = x^2-5l And I also so know, when...
47. ### math

Lucia is hoping that Angela will buy her a geometrically interesting piece of land on which he will build a mansion. Lucia has said that she will only buy the land if it costs less than \$4.00 per square foot. The plot shown below is listed for \$453,175. Is Angela going to be ...
48. ### Calculus

A cylindrical drum is made to hold exactly 1m^3 in its interior. Assume that the material for the top and the bottom costs \$20 per m^2, while that for the side costs \$10 per m^2. Determine the radius of the drum that minimizes the cost of the material used. Any help will be ...
49. ### Math

Soybean meal is 18% protein; cornmeal is 9% protein. how many pounds of each should be mixed together in order to get 360lb mixture that is 11% protein? How many pounds of the cornmeal should be in the mixture? How many pounds of the soybeans meal should be in the mixture? The...
50. ### math

ABC is a right-angled triangle atB. AB=(3x+2)cm and BC=2CM.GIVEN THAT THE AREA OF THE TRIANGLE IS 85CM SQUARE FIND THE VALUE OF X. Say that the height= 3x+2 base= 2 Area of a triangle equals 1/2 base times height so... (1/2) of the base is 1 and 1 times the height (3x+2) is 3x...
51. ### algebra 1

a high school wrestling mat must be square with 38-foot sides and contain two circles as shown. suppose the inner circle has a radius of "s" feet and the outer circle's radius is nine feet longer than the inner circle. *write an expression for the area of the larger circle. * ...
52. ### Calculus

SOS...help!!! please email me at 969e221 at g mail. com here is the question: Find the trapezoid of largest area that can be inscribed in the upper half of the ellipse x2/9 + y2/4 = 1 where the lower base of the trapezoid is on the x-axis and is 6 units long. I need to graph ...
53. ### factoring

if the length of one side of a square is 1/2h, find the representation of the area. If a side of a square is s, the area is s squared. area of square is (length of side)^2. Substitute 1/2h for (length of side) and go from there.
54. ### math

find the area of this ring to the nearest square unit. Show your work. The image shows a ring, the inside raius is 2.0m, and the outside radius is 3.2m. The area of the ring is... plz help!! thx.

Greta is designing a page for the yearbook and needs to know the area of her 8 in. x 10 in. picture after she crops it. If she makes the length and width of the picture 5/8 of the original, how does the area of the picture change?
56. ### math

An artist wants to reduce the size of a drawing using a scale factor of 3:1 . The original drawing has an area of 720 square inches. What is area of the new drawing? Enter your answer in the box.
57. ### math

Empirical data suggest thatthe surface area of a 180-cm-tall human body changes at the rate ofsquare meters/kilogram, where W is the weight of the body inkilograms. If the surface area of a 180-cm-tall human body weighing 70 kg is 1.886277 m ,what is the surface area of a ...
58. ### Algebra

1.0<x<1. Which must be true? I. x^9 < x^7 II.x^7+x^5 < x^6+x^4 III. x^7-x^5 < x^6-x^4 2. A football team average x points (the mean) in the first n games, scored y points in the next game, and z points in the one after that . The mean of the n+2 is A.(x+y+z) / (...
59. ### Math

Jerome claims he can find the area of the composite shape shown by inscribing it in a rectangle and subtracting. Kelly claims that to find the area you need to use addition. Who is correct? Justify your answer.The picture looks like a 2 sided pointed pencil with 6 sides. The ...
60. ### maximum and minimum problems when function unknown

Hi, can anyone please help me with this problem, i have no idea what to do! The question is: a window frame is in the shape of a semicircle joined to a rectangle. Find the macimum area of a window using 300 cm of framework. i can usually solve these sorts of questions when i'm...

A fish tank in the shape of a cuboid has length 320 cm. Its length is twice that of its width. To enhance viewing, the area of the four vertical faces should be maximized. Find the optimum "viewing area" of a fish tank that is fixed to the wall so that the area of three faces ...
62. ### Math: Word Problem

A security fence encloses a rectangular are on one side of a park in a city. Three sides of fencing are used, since the fourth side of the area is formed by a building. The enclosed area measures 450 square feet. Exactly 60 feet of fencing is used to fence in three sides of ...
63. ### algebra 1...urgent

a high school wrestling mat must be square with 38-foot sides and contain two circles as shown. suppose the inner circle has a radius of "s" feet and the outer circle's radius is nine feet longer than the inner circle. *write an expression for the area of the larger circle. * ...
64. ### college

the area A of a triangle is calculated as A= 1/2 hB. If the height h is 12 feet and the base B is 4 feet long, what is the area, in square feet?
65. ### science

plunger a has an area of 54cm and plunger b has an area of 15cm, how much more force can be exerted by plunger b
66. ### math

4. the area of a rectangle is 450 m^2. both the length and width of the rectangle are increased by 10%. what is the area of the new rectangle?
67. ### Algebra

A right triangle has an area of 24 ft^2 the demesions of the triangle are increased by a scale factor of 6 what is the area of the new triangle
68. ### math

a leach-free area for dogs is to be created in a field behind a recreation centre. what length of fencing will be required, if the plans show an irregular pentagonal area with vertices at (2,0), (1,6), (8,9), (10,7), and (6,0)?( one unit represents 10m). pls i really need help
69. ### Calculus

Let R be the region in the first quadrant under the graph of y=1/sqrt(x) for 4</=x</=9. (a)Find the area of R. I took the antideriative. Then, I plugged in the 9 and 4. I got 2. (b) If the line x=k divides the region R into two regions of equal area, what is the value of...
70. ### calculus

Sketch the region in the first quadrant enclosed by y=6/x, y=2x, and y=.5x. Decide whether to integrate with respect to x or y. Then find the area of the region. need final area as answer please, and step would be helpful also if you can post.
71. ### Algebra

You have 400 feet of fencing to enclose a rectangular plot. Find the length and width of the plot that will maximize the area. What is the largest area that can be enclosed? I'm not sure how to start. We haven't learned this yet in class.
72. ### sheridan

A car dealership fences in a rectangular area behind their building to secure unsold vehicles. One length will be the back wall of the dealership. What is the maximum parking area that can be created if they have 2 km of fencing to use?
73. ### Algebra

I am stuck on this question The length of a rectangle is fixed at 26 cm what widths will make the perimeter greater than 82 cm?
74. ### algebra and trigonometry

find the dimensions of a rectangle having perimeter 14m and diagonal of length 5m
75. ### college

the width of a rectangle is fixed at 22cm. what lengths will make the perimeter greater than 84cm.
76. ### Math

If i wanted to find the triangle and the perimeter is 7x+2y units. OPPOSITE: 2x+y ADJACENT: 3x-5y WHAT IS THE HYPOTHENUSE? Please help me.
77. ### math

The perimeter of a rectangle is 128m. The length is 4m more than twice the width. Find the dimensions.
78. ### math (final one)

the length of rectangle is fixed at 17 cm. What widths will make the perimeter greater than 82 cm?
79. ### geometry

rectangles length is 3 more than twice its width and has a perimeter of 30 centimeters find the dimensions
80. ### math

if i was to draw three circles 1 large 1 med. and 1 small what will be the diameter and the perimeter of those 3 ?
81. ### college

The width of a rectangle is fixed at 16cm. What lengths will make the perimeter greater than 84cm?
82. ### algebra

The perimeter of a rectangle is 92m. The length is 4m more than twice the width. Find the dimensions.
83. ### algebra

the lenghth of a rectangle is fixed at 20cm what widths will make the perimeter greater than 72cm?
84. ### Calculus

Find the length of the entire perimeter of the region inside r = 16sin(theta) but outside r = 4.
85. ### Rectangles

The width of a rectangle is fixed at 18cm. What lengths will make the perimeter greater then 74cm?
86. ### calculus

Find the length of the entire perimeter of the region inside r = 16sin(theta) but outside r = 4
87. ### math

The width of a rectangle is fixed at 24 cm. What length will make the perimeter greater than 88 cm? I got 21 is that correct?
88. ### geometry

if a regular octagon has a perimeter of 264 centimeters, what is the measure of each interior angle and each side?
89. ### Math

The length of a rectangle is fixed at 20cm. What widths will make the perimeter greater than 78cm?
90. ### math

using only whole numbers how can you draw three rectangles with a perimeter of 12 units?
91. ### Math

How many different rectangles can you draw that have a perimeter of 48cm? whole numbers only.
92. ### cartesian vectors 1

Given that points P(-6,1), Q(-2, -1) and R(-3,4) find: a) magnitude of vector RP b) perimeter of triangle PQR
93. ### algebra

The width of a rectangle is fixed at 30cm. What lengths will make the perimeter grater than 82cm.?
94. ### algebrra

perimeter: 56cm 7cm 24cm the lenght of the third side of the triangle is? idk
95. ### geometry

The length of a rectangle is 1 meter less than three times the width, the perimeter is 46 meters.
96. ### Math

Two sides of a triangle are x + 2cm and 2x-3cm. If the perimeter is 5x + 7cm, what is the third side?
97. ### math

The perimeter of a quadrilateral is 56. The lengths of three consecutive sides are 9, 13, and 16. What is the length of the fourth side?
98. ### geometry

The perimeter of a quadrilateral is 56. The lengths of three consecutive sides are 9, 13, and 16. What is the length of the fourth side?
99. ### Maths

A rectangle has length 2y and width y+ 2. Its perimeter is less than 50 cm. What are possible values for y ? Write inequality?
100. ### calculus II

Find the length of the entire perimeter of the region inside r = 11 sin (theta) but outside r = 2