# area, perimeter

21,234 results, page 30
1. ## calculus

Find the surface area of the solid generated by rotating the area between the y-axis, (x^2/y) + y = 1, and -1≤y≤0 is rotated around the y-axis.

asked by Anonymous on February 13, 2012
2. ## marh

The radii of two circles are in the ratio of 3 to 1. Find the area of the smaller circle if the area of the larger circle is 27 sq. in.

asked by kyle on July 8, 2014
3. ## math

A Standard sheet of typewriter paper is 8 1/2 in. by 11 in.. Don types on a 7 in by 9 in. area of the paper. What is the area of the margins?

asked by Keya on May 24, 2011
4. ## calculus

consider the area enclosed between the curves f (x) = x2 and g (x) = 4x what is the volume obtained by revolving the area between these two curves around the line y = 20 ? please help, i don't know what to do

asked by amy on February 2, 2010
5. ## calculus

the region enclosed by 2y=5xy=5 and 2y+3x=8. Decide whether to integrate with respect to x or y, and then find the area of the region. The area is

asked by Anonymous on May 2, 2012
6. ## geometry

pqrs is a parallelogram. pr and sq are its diagonals prove area triangle sor =area triangle pqo

asked by DIPI on December 26, 2017
7. ## geometry

The area of a decagon is 600 ft2. If the dimensions are reduced by a factor of 4, what is the area of the smaller decagon?

asked by Anonymous on April 14, 2010
8. ## Calculus - another question

"The side of an equilateral triangle decreases at the rate of 2 cm/s. At what rate is the area decreasing when the area is 100 cm^2?" Help!

asked by Stuck on March 9, 2010
9. ## math

Area of Parallelograms:Find the height of a parallelogram with base 9.44 meters and area 70.8 square meters.

asked by Nyan on January 8, 2017
10. ## Math

The area of a square is 16cmsq. Find the area of the square joining the mid pt. Of its side. Gv me sltn

asked by Simran kaur on September 12, 2012
11. ## Cal 2

Find the points of intersection of the graphs of the functions y=4x^2-25 and y=0. -5/2,5/2 Find the area bounded by the curves y=4x^2-25, y=0, x=-1, x=3.5. PS the area is not 54 I already tried.

asked by Natalie on January 29, 2018
12. ## algebra

The area of a rectangle formula is A = lw. Suppose that the width is 5 less than the length. Express area as a function of the width.

asked by gail on November 14, 2014
13. ## math

The scale factor for two similar retangles is 3. If the area of the smaller rectangle is 8m^2, what is the area of the larger rectangle.

asked by Hank on October 16, 2012
14. ## Math

In the figure to the right, ABCD is rectangle. Find the area of △ABC, if the area of △AOD is 10. It is a rectangle with a x in the middle.

asked by Matt on March 5, 2017
15. ## Geometry

What is the ratio of the area of triangle XBY to the area of triangle ABC for the given measuremnts, if XYis similar to AC, and BY=2 and BC=4?

asked by Kaley on May 17, 2010
16. ## calculus

consider the area enclosed between the curves f(x)=x^2 and g(x)=4x what is the volume obtained by revolving the area between these two curves around the line y=20 ? please help, i don't know what to do

asked by amy on February 2, 2010
17. ## maths

the area of a circle pqr with a center o is 72cm2 what is the area of sector poq if poq = 40 degree

asked by kecia on November 17, 2016
18. ## geometry

1.The surface area of a rectangular prism is 150 cm². If all the sides are tripled, what will the new surface area be?

asked by kee on August 10, 2011
19. ## Algebra

1. The area of a rectangle is 12 and the width is 3/4 the length. What are the dimensions? 2. One leg of a right triangle is 2 1/2 times the other and the area is 20. What are the dimensions?

asked by Breanna on June 30, 2009
20. ## MATH

IF YOU DIVIDE PARK A(656 AREA SQ MI)INTO 32 EQ.PARTS, EACH CONTAINING A WHOLE # OF SQ. MI. HOW LARGE WOULD EA. PART BE? HOW LARGE WOULD THE REMAINING AREA BE?

asked by ERNEST on October 31, 2012
21. ## Geometry

Given the rectangle ABCD has a total area of 72. E is in the midpoint of BC and F is the midpoint of DC. What is the area of the inscribed triangle AEF?

asked by Anon on August 12, 2015
22. ## Maths

area (triangle BCE )=75.2 meter square. Find area ( ABCD) where ABCD is a parallelogram

asked by Anonymous on December 27, 2015
23. ## math

I have a question that says one rectangle has a 3x4 centimeter area. If I make another rectangle, what's the area if the scale factor is 4?

asked by Tre on November 22, 2011
24. ## math

If the average density of the dining area is 10kg/m^2 and the if the mass is 1000kg how much space does the dining area take up?

asked by johnmeisha on October 23, 2013
25. ## math

The scale factor for two similar rectangles is 3. If the area of the smaller rectangle is 8 m2, what is the area of the larger rectangle

asked by ? on November 6, 2012
26. ## Maths

a map with a scale of 1cm to 5km has an area of 405cmsquare. what is the actual area of this map on the ground?

asked by Richard on April 28, 2016
27. ## sri krishna

If the surface area of a cube is 18sq.cm what is the surface area of a cuboid formed by joining 3 of these cubes

asked by sanjana on October 19, 2015
28. ## Applied Math- Gr.11

A farmer wants to enclose three sides of a rectangular pasture unsing 1000 yards of fencing. The fourth side does not require fencing because it borders a river. What dimensions (length and width) should the farmer choose in order to enclose the greatest

asked by Greg on May 1, 2008
29. ## math

Kendra is using 27 blue patches and some white patches to make a quilt. The quilt has a total area of 540 square inches. Each patch has an area of 5 square inches. How much of the area of the quilt is white? Explain.

asked by DJ on January 7, 2018
30. ## Math-Algebra 2

The surface area of a golf ball is 8.92 in ^2. The surface area of a softball is 53.78 in ^2. Find the ratio of the volumes of a golf ball to a softball. Surface Area = 4π r^2 and Volume = 4/3π r^3 I'm not sure if I did this problem right, but I think

asked by Brianna on February 9, 2012
31. ## Math

PLEASE HELP!!! 1. A sphere has a radius of 2x+3. Which polynomial in standard form best describes the total surface area of the sphere? Use the formula S=4πr^2 for the surface area of a sphere. 2. A carpenter is putting a skylight in a roof. If the roof

asked by Anonymous on March 26, 2018
32. ## Math CSET

A student scores 96 on a test. The class average is 84, with a standard deviation of 4 points. What percentage of the class scored below this student? I understand the 96-84/4 part to obtain a z-score of 3. What I do not understand is, if I do not have

asked by Michael on July 21, 2016
33. ## 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

asked by trixie on March 5, 2008
34. ## algebra

A triangular lot in a park has a base with a measure that is 4 more than twice the height of the lot. The area of the lot is 99 square feet. Since the area of a triangle is found by using the formula A= 1/2bh, the area for this lot can be represented by

asked by kylie on January 14, 2019
35. ## 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

asked by trixie on March 5, 2008
36. ## programming

Java Programming Build 3 methods(no arguments) that will do the work (input, calculations and output) for each of the 3 different figures. Then in the 3 “if” statements (or Switch stmt) that you have to determine which figure was selected, you should

asked by erik on February 21, 2018
37. ## science

You would expect that an injection of an opiate drug into the __________ would activate dopamine neurons in the nucleus accumbens. A. ventral tegmental area B. medial septal region C. periaqueductal gray matter D. preoptic area My choice is C

asked by Jane on April 13, 2015
38. ## Research &Evaluation

Need help on the following question...Please How many ways can an IRS auditor select 6 if 12 tax returns for an audit Use a table of areas to find the specified area under the standard normal curve. The area that lies to the left of 1.13 (a)0.8485 (b)

asked by Denim on September 7, 2008
39. ## Maths

What is surface area and how do you work it out? Surface area is the area on an object. How one works it is dependent on the object. SURFACE IS THE AREA OF ANY OBJECT. AND HOW IT WORKS IS IF YOU HAVE A SQUARE AND YOU WANT TO FIND THE PERIMITIER THEN YOU

asked by Sarah on February 14, 2007
40. ## 8 math

Population density is described as the average number of people per square kilometre. The population density of Canada is approximately 3.5 persons/km2. Use the data in the table. Name a province or territory that has: a) A population density closest to

asked by cassie on October 6, 2008
41. ## 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

asked by Buster on May 7, 2014
42. ## water & climate

We have a catchment with a total area of 9.0 km2, where the runtime principle applies. The area is subdivided in 5 regions (A1 to A5) in such a way that every individual area has a runtime of 30 minutes. The areas drain sequentially. A5 is at the top of

asked by rooney on October 30, 2015
43. ## water & climate

We have a catchment with a total area of 9.0 km2, where the runtime principle applies. The area is subdivided in 5 regions (A1 to A5) in such a way that every individual area has a runtime of 30 minutes. The areas drain sequentially. A5 is at the top of

asked by rooney on October 28, 2015
44. ## 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 80 ft of fence? what should the dimensions of the garden be to give this area. The maximum

asked by Mary on March 5, 2012
45. ## calculus

Approximate the area in the first quadrant between the x-axis, the y-axis, the line x = 3, and the function f(x) = x^2+1 For this approximation, you must use 6 rectangles of equal width, and this must be a lower sum. In your answer, you must include

asked by Courtney on November 30, 2011
46. ## dma 040

Area of a certain state(state1) is five times the area of another state(state2). If the sum of their area is 6,000,000 square miles, find the are of each state state1 state2

asked by Anonymous on September 15, 2013
47. ## Calculus

Approximate the area under the curve of f(x)=9-x^2 between x=-2 and x=3 by calculating the area of 5 rectangles for both left hand endpoints and right hand endpoints. I have the left hand and right hand endpoints, what I need help in is solving for the

asked by Mike on December 3, 2017
48. ## Math (Geometry)

1. A rhombus has an area of 5 square meters and a length of 3 meters. In a similar rhombus, the length of a side is 9 meters. What is the area of the second rhombus? [Area= diagonal1 X diagonal2 / 2]

asked by Josh on August 6, 2013
49. ## Geometry plz help

A rectangular solid has a top face with surface area of 28 ft, a front face with surface area of 20 ft, and a side face with surface area of 70 ft. What is the volume of this solid?

asked by Ryan on November 29, 2009
50. ## math-word problems with quadratics

I have 5 questions... 1) The sum of two numbers is 12. Their product is 36. Find the two numbers. 2) The sum of two numbers is -15. Their product is -100. Find the two numbers. 3) The sum of two numbers is -8. Their product is 12. Find the two numbers. 4)

asked by Dakota on May 1, 2007
51. ## chemistry

How do you solve this problem? In a certain industrial process involving a heterogeneous catalyst, the volume of the catalyst (in the shape of a shpere) is 10.0cm^3. Calculate the surface area of the catalyst. IF the sphere is broken down into eight

asked by Jin on July 15, 2010
52. ## geometery

4. Quadrilateral MATH has been dissected into squares. The area of the red square is 64 square units and the area of the blue square is 81 square units. Determine the dimensions and the area of quadrilateral MATH.

asked by kim on June 9, 2014
53. ## geometry

Quadrilateral Math has been dissected into squares. The area of the red square is 64 square units and the area of the blue square is 81 square units. Determine the dimensions and the area of Quadrilateral Math?

asked by Maria on October 25, 2014
54. ## geometry

ABCD IS A PARALLELOGRAM.P IS A POINT ON SIDE CD.AREA OF TRIANGLE ADP=48 SQUARE CENTIMETRE AND AREA OF TRIANGLE BCP=30 SQUARE CENTIMETRE FIND AREA OF PARALLELOGRAM ABCD

asked by DEEPI on February 9, 2018
55. ## Math

A rectangular swimming pool is 6 meters longer than the width of the pool. A pool deck (sidewalk) that surrounds the pool is 4 meters wide (all the way around the pool). The combined area of the pool deck and pool together (outer rectangle) has an area of

asked by Anonymous on May 9, 2017
56. ## 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

asked by Sarah on May 21, 2012
57. ## 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?

asked by katlego ratsoma on September 10, 2013
58. ## 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

asked by kyle on November 6, 2013
59. ## statistics

A new restaurant with 123 seats is being planned. Studies show that 63% of the customers demand a smoke free area. How many seats sould be in the non-smoking area in order to be very sure (mean+3StandardDeviation) of having enough seating there?

asked by Judy on November 13, 2011
60. ## 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?

asked by peace on April 17, 2017
61. ## pre-algebra

Justin wants to use 376 ft of fencing to fence off the greatest possible rectangular area for a garden. What dimensions should he use? What will be the area of the garden? A. 89 x 99; 8811 ft B. 92 x 96; 8832 ft C. 94 x 94; 8836 ft D. 93 x 95; 8835 ft

asked by heather on July 26, 2017
62. ## Algebra

Which must be a whole number? A. The time it takes to drive 300 miles at 55 mph B. The area of a circle with a radius of 5 feet C. The area of a triangle with base of 15 and height of 9 D. The number of books in 12 bookstores

asked by Robin on January 2, 2012
63. ## geometry

In a circle centered at point O, the ratio of the area of sector AOB to the area of the circle is . What is the approximate measure, in radians, of the central angle corresponding to ? Round the answer to two decimal places

asked by Mallory on January 5, 2017
64. ## trigonometry and geometry

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?

asked by peace on April 17, 2017
65. ## math

1. Find the area of a circle whose diameter is 5.1 centimeters (cm). Use 3.14 for ƒàƒnand round your answer to the nearest tenth of a square centimeter. 2.A triangle has base 13 feet (ft) and an altitude of 6 ft. Find its area

asked by chester on October 12, 2007
66. ## Grade 12 Calculus and Vectors

A homeowner wants to enclose a rectangular garden with fencing The garden will be adjacent to his neighbours lot. There will be fencing on all four sides. His neighbour will be paying for half of the shared fence. What should the dimensions of the garden

asked by Scott on May 17, 2016

Write a system of equations to match each of these problems. Then solve the equations using the method... Substitution, or linear combinations. _____________________________________ 1. Dan is 4 years older than his brother Gabriel. Together their ages

asked by JORDAN on October 1, 2014
68. ## calculus

A format for textbook page layouts is to be chosen so that each printed page has a 4-cm margin at the top and at the bottom and a 2-cm margin on the left and right sides. The rectangular region of printed matter is to have an area of 800 sq. cm. Find the

asked by maricela on May 10, 2007
69. ## math

In any triangle the sum of the measures of the angles is 180. In triangle ABC, A is three times as large as B and also 16 larger than C. Find the measures of each angle. I also would like to know how to solve these problems: In isosceles trapezoid ABCD,

asked by Faye on October 4, 2008
70. ## Math

The diagram: it is a large triangle labelled ACD(AC a line horizontal, then AD and CD joining at the tip going down-so the triangle is "upside down" with the base up) with a line drawn that connects point E, which intersects segment CD at the middle(a

asked by Winnie on March 18, 2015
71. ## geometry

The figure shown is a rectangle. the green shape in the figure is a square. The blue and white figures are rectangles, and the area of the blue rectangle is 24 square inches. a. write an expression for the area of the entire figure that includes an

asked by catsanddogs on April 17, 2015
72. ## MATHS

Hi Just checking The area of one face of a cube is 64cm squared What it the total surface area of the cube? DO we do 64 times 6 and the answer is 384 cm cubed? Also it askes what is the volume I do 64 cubed which is 262144 cm cubed ? AM I right ? yes- the

asked by gt on April 15, 2007
73. ## 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

asked by boo boo on July 14, 2008
74. ## 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.

asked by Taylor on January 12, 2016
75. ## 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?

asked by Urmil on March 18, 2013
76. ## math

Two corresponding sides of similar polygons are in the ratio of 8:7. If the area of the smaller figure is 512 square meters, what is the area of the larger figure? A) 3584 m B) 134,217,728 m C) 392 m D) Not enough information given

asked by jeng on October 29, 2009
77. ## MOMETRIX TEAS 6 practice

On a floor plan drawn at a scale of 1:100, the area of a rectangular room is 30cm^2. What is the actual area of the room? Answer: 30 m^2 Just need help understanding the concept and putting it all together. I can't grasp it very well from the book. Please

asked by Sunday on March 1, 2017
78. ## geometry

The image for this question can be found at: screenshots(dot)firefox(dot)com/AsFVDd1o7hceJtQT/null The square has side length 12 and the area of the blue region is 12 What is the combined area of the yellow regions?

asked by un owen on May 17, 2018
79. ## maths geometry

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? HELP PLS.

asked by OSAS on April 18, 2017
80. ## Intro to psychology / science

One part of the brain, if stimulated during adolescence, will form two distinct regions. This area of the brain is referred to as: A.) the occipital lobes B.) the pituitary glands C.) Broca's area D.) the parietal lobe I think the answer is B. am i right?

asked by pateyn on January 5, 2012
81. ## MATH

THE RATIO OF THE PERIMETERS OF TWO SIMILAR TRIANGLES IS 1:3. htE AREA OF THE LARGER TRIANGLE IS 27FT^2. WHAT IS THE AREA OF THE SMALLER TRIANGLE. SORRY FOR THE CAPITAL LOCK. MY COMPUTER KEPBOARD WILL NOT PUT IT TO LOWER CASE SORRY AGAIN.

asked by ZACH on February 21, 2012
82. ## Geometry

1. Find the surface area for the given circle. A.) 564 in² B.) 664 in² C.) 1,120 in² D.) 1,080 in² 2. Find the lateral area for the given prism. A.) 1,092 cm² B.) 998 cm² C.) 1,272 cm² D.) 870 cm² 3. Find the surface area for the given cylinder.

asked by Tristan on March 6, 2019
83. ## Geometry

1. Find the surface area for the given circle. A.) 564 in² B.) 664 in² C.) 1,120 in² D.) 1,080 in² 2. Find the lateral area for the given prism. A.) 1,092 cm² B.) 998 cm² C.) 1,272 cm² D.) 870 cm² 3. Find the surface area for the given cylinder.

asked by Tristan on March 6, 2019
84. ## algebra

The width of a rectangle is three-fourths its length. If the perimeter is 100 ft, find its dimensions

asked by Avina on July 20, 2014
85. ## Algebra

the length of a rectangle is fixed at 10 cm. What widths will make the perimeter greater thatn 74 cm?

asked by sam on May 7, 2011
86. ## Algebra

The length of a rectangle is fixed at 17cm. What widths will make the perimeter greater than 98 cm?

asked by JOHN H on May 26, 2010
87. ## Math

A 4in. by 5in. photo is enlarged by multiplying the length and width by 2. What is the new perimeter?

asked by Anonymous on May 22, 2012
88. ## algebra

Given a right triangle whose side lengths are integral multiples of 7, how many units are in the smallest possible perimeter

asked by algebra on January 20, 2011
89. ## SURE/math

What is the total perimeter of the three tiles? If each square tile is measures 8 inches on the side?

asked by Aron on December 5, 2015
90. ## calculus

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

asked by rao shahbaz on February 17, 2010
91. ## algebra g

You know the perimeter of a square to be 8 meters. Find the length of one side. How do you set up the formula

asked by jennifer on October 13, 2016
92. ## math

a rectangle with a perimeter of 54cm is 3cm longer than it is wide. what are its length and width?

asked by Anonymous on September 10, 2018
93. ## Math

The length of a rectangle is fixed @ 21 cm, what widths will amke the perimeter greater than 78cm?

asked by tammy on April 1, 2011
94. ## calculus II

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

asked by Anonymous on October 23, 2010
95. ## algebra

The width of a rectangle is fixed at 27 cm. What lengths will make the perimeter greater than 96cm?

asked by Frustrated on September 9, 2009
96. ## 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.

asked by Anonymous on March 24, 2009
97. ## Math

A circular pizza of radius 8 is cut into 8 equal slices. What is the perimeter of one slice?

asked by Jenna on August 5, 2015
98. ## maths

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

asked by girl analyser on November 28, 2016
99. ## math

the length of a rectangle is fixed at 26m. what widths will make the perimeter greater than 90 cm

asked by jean on September 27, 2010
100. ## Algebra 2

The perimeter of a square is to between 14 and 44 feet, inclusively. Find all possible values for the length of its sides.

asked by christell on December 10, 2015