# area, perimeter

20,848 results, page 36
1. ## Math 209

If a cylindrical container has a volume of cubic feet, then its surface area S in square feet (excluding the top and bottom) is given by S = s=(2π )/r where r is the radius of the cylinder. (a) Calculate S when r =1/2 foot (b) What happens to this surface

asked by DeLynn Stewart on July 9, 2011
2. ## math

A school has purchased a large field that has a square area of 19,500 ft2. What is the approximate length of each side of the square area? Round your answer to the nearest foot. a. 140 ft c. 142 ft b. 139.64 ft d. 139 ft

asked by daniel on July 17, 2014
3. ## Math

Estimate the are under the curve f(x)=x^2-4x+5 on [1,3]. Darw the graph and the midpoint rectangles using 8 partitions. Show how to calculate the estimated area by finding the sum of areas of the rectangles. Find the actual area under the curve on [1,3]

asked by Jesse on November 19, 2010
4. ## Science 1 question

A researcher, studying dolphins in the wild, made the following sketch. Each dot on the map represents one dolphin. The area surveyed by the scientist was 1 km ^2. Based on the researcher's data, how many dolphins would you estimate to be in a 3 km ^2

asked by Noel on September 29, 2015
5. ## Calculus

A poster is to have an area of 160 in2 with 1 inch margins at the bottom and sides and a 7 inch margin at the top. What dimensions will give the largest printed area? (Give your answers correct to one decimal place.)

asked by Anna on January 29, 2014
6. ## Finance Management

Suppose the population of Area Y is relatively young and the population of Area O is relatively old. Would interest rates likely be the same or different in the two areas? Explanin. Would a trend toward nationwide branching by banks and the development of

asked by Jason on March 1, 2009
7. ## Calculus

A poster is to have an area of 160 in2 with 1 inch margins at the bottom and sides and a 7 inch margin at the top. What dimensions will give the largest printed area? (Give your answers correct to one decimal place.)

asked by Anna on January 29, 2014
8. ## calculus

A book designer decided that the pages of a book should have 1-in. margins at the top and bottom and 1 2 in. margins on the sides. She further stipulated that each page should have an area of 50 in.2. Find a function in the variable x, giving the area of

asked by Anonymous on September 23, 2012
9. ## calculus?

I want a rectanglular pen with area = 50 square feet and to save on fencing I will build it next to the garage. How should I design it so I use the least amount of fence-only 3 sides will be needed next to the garage. How can I figure out that I have found

asked by lola on July 14, 2012
10. ## Calculus

A pig farmer wants to enclose a rectangular area and then divide it into six pens with fencing parallel to one side of the rectangle (see the figure below). There are 610 feet of fencing available to complete the job. What is the largest possible total

asked by Christie on April 27, 2012
11. ## Calculus

A cattle rancher wants to enclose a rectangular area and then divide it into six pens with fencing parallel to one side of the rectangle (see the figure below). There are 480 feet of fencing available to complete the job. What is the largest possible total

asked by Marie on April 23, 2012
12. ## algebra

Marcus has 72 feet of fencing. He wants to build a rectangular pen with the largest possible area. What should the dimensions of the rectangular pen be to maximize the area?

asked by ashley on July 28, 2013
13. ## college algebra

A rectangle is bounded by the x-and y- axes and the graph of y = -1/2x + 4. a.) Find the area of the rectangle as a function of x. b.) Complete the following table x area 1 2 4 6 7 c.) What is the domain of this function?

asked by Anonymous on February 28, 2012
14. ## pre-calculus

suppose a triangle has two sides of lengths a and b. if the angle between these sides varies, what is the maximum possible area that the triangle can attain? what can you say about the minimum possible area?

asked by tatiana on September 29, 2011
15. ## geometry help needed.

I have a rectangle here with triangles inside. some triangles are blank others are shaded. -The area of the rectangle ABCD is 40in^2. What is the area of the unshaded region?

asked by rami on September 6, 2014
16. ## 8th grade math

Two towers are similar. The area of the larger tower is 400 pi ft^2 and the area of the smaller tower is 169 pi ft^2. What is the ratio of the heights of the towers?

asked by Piggy on April 11, 2012
17. ## Geometry

What is the scale factor of the area 78in2/128in2? I know area is a2/b2. Now I took the square root and would that be my answer? Can you please do the square root because I get a looooong decimal. Thank you!

asked by Karen Shek on March 29, 2017
18. ## Math

The park has an area of about 25cm^2 on the map and a map has a scale of 1:15000. calculate the area of the park on the ground. give answer to Km^2

asked by Tim on June 18, 2010
19. ## math

If a room were 2m longer and 3m broader its area would have increased by 16 sq m. if its were 1 metre shorter and 2m broader . the area would have increased by 16 sq m. find its lenght and breadth ?

asked by aman on June 2, 2016
20. ## college algebra

A rectangle is bounded by the x-and y- axes and the graph of y = -1/2x + 4. a.) Find the area of the rectangle as a function of x. b.) Complete the following table x area 1 2 4 6 7 c.) What is the domain of this function?

asked by Melissa on February 28, 2012
21. ## Geometry

Two cubes of volumes 8 and 27 are glued together at their faces to form a solid with the smallest possible surface area. What is the surface area of the resulting solid?

asked by Sheenybeany on July 22, 2014
22. ## algebra

The formula for the area of a trapezoid is A = h(B + b) 2 . The area of the truss is 20 square feet. Find the height of the truss if the shorter base is the same as the height h.

asked by HELP ME on November 12, 2016
23. ## math

A cube has a total surface area of 384 ft². Find the total surface area of the largest sphere that will fit into it.

asked by maribel on January 31, 2010
24. ## Math

If a circle is inscribed in a triangle with vertex angles 30o - 60o - 90o , then what is the area of the triangle divided by the area of the circle?

asked by Judy on May 10, 2014
25. ## Sixth Grade Math

To find the surface area of a box, add the areas of the faces: 2(lw) + 2(lh) +2(wh). What is the surface area of the box below? H=8m W=5m L =11m My answer is 366m.

asked by Stephon on December 14, 2014

Find the area of the parallelogram that has the vectors as adjacent sides. u = i + 2j + 2k V = i + k I know that the magnitude of the cross product results on the area. After I do the cross product then what to I do?

asked by Abbey on April 1, 2010
27. ## Algebra II

The area of a triangle varies jointly as its base and altitude. By what percent will the area change if the base is increased by 15% and the altitude decreased by 25%?

asked by Jake on November 22, 2011
28. ## math

what would have a greater surface area? a cylinder that is flat and smooth or a cylinder that is threaded? I think the smooth one will because the threads remove area that needs to be covered?

asked by Anonymous on June 20, 2017
29. ## Algebra II

The area of a triangle varies jointly as its base and altitude. By what percent will the area change if the base is increased by 15% and the altitude decreased by 25%?

asked by Jake on November 22, 2011
30. ## Math

The area of a triangle varies jointly as its base and altitude. By what percent will the area change if the base is increased by 15% and the altitude decreased by 25%?

asked by Zoey on November 22, 2011
31. ## Calculus

The region R is bounded by the x-axis, x = 1, x = 3, and y = 1/x^3 A) Find the area of R B) B. Find the value of h, such that the vertical line x = h divides the region R into two Regions of equal area.

asked by Samantha on May 6, 2014
32. ## Algebra II

The area of a triangle varies jointly as its base and altitude. By what percent will the area change if the base is increased by 15% and the altitude decreased by 25%?

asked by Ashley on November 22, 2011
33. ## Math

The area of a triangle varies jointly as its base and altitude. By what percent will the area change if the base is increased by 15% and the altitude decreased by 25%?

asked by Jake on November 22, 2011
34. ## AP Calculus AB

Which integral gives the area of the region in the first quadrant bounded by the axes, y = e^x, x = e^y, and the line x = 4? The answer is an integral. I know y=e^x has no area bounded, but I don't know how to incorporate it all.

asked by Vikram on February 14, 2016
35. ## Math

Point E is the midpoint of BC of a rectangle ABCD and F is the mid point of CD, The area of Triangle AEF is 3sq.units then the area of ABCD is?

asked by bingo on September 2, 2016
36. ## Math

The size to which a pumpkin grows while on the vine is probably problematic, as our current visiting POLY pumpkins demonstrate. What if we were watching a pumpkin on the vine grow over time and that its shape was totally spherical. Now for your five (5)

asked by Tho on April 20, 2013
37. ## Algebra Word Problem Help

I got 2 more intense problems like this. Can someone show me the way for each step so I can follow along with the other problems I have to do? ThankS! A gardener has 40 feet of fencing with which to enclose a garden adjacent to a long existing wall. The

asked by Katlyn on August 4, 2009
38. ## Physics (Liquids)

I have a question about fluids ok... I've been told that Pressure = (density of fluid) (gravity) (height) ok that's great in all but I don't see how it works... Pressure = (Force perinduclar to area force is acting on)/(Area force is acting on) ok this

asked by Physics (Liquids) on October 22, 2009
39. ## Chemistry

Please help! A drop of oil (volume 0.05 cm3) is released from a medicine dropper on to the calm surface of a pond where it spreads out to cover an area of 40 cm2. Assume that the oil film has a uniform thickness equal to the diameter of an oil molecule.

asked by Bean on February 22, 2007
40. ## algebra

The lengths of the sides of a triangle are consecutive even integers. Find the length of the longest side if it is 22 units shorter of the perimeter.

asked by Anonymous on October 17, 2010
41. ## algebra

The sides of a square sheet of metal are of length 30 cm. A quadrant radius 15 cm is cut from each of the four corners. What is the perimeter of the shape which is left?

asked by Nicola on December 8, 2010
42. ## math

The length and breadth of a rectangular paper were measured to be the nearest centimeter and found to be 18 cm and 12 cm respectively. Find the percentage error in its perimeter.

asked by kudu on February 11, 2015
43. ## Math

The length and breadth of a rectangular paper were measured to be the nearest centimeter and found to be 18 cm and 12 cm respectively. Find the percentage error in its perimeter.

asked by John on March 7, 2015
44. ## Math

A map of scale 1:10000a rectangular plot of land measures 5cm by 3cm. What is the actual perimeter in metres

asked by Anonymous on October 8, 2018
45. ## math

What is the greatest number of rectangles with integer side lengths and perimeter 10 that can be cut from a piece of paper with width 24 and length 60?

asked by tish on July 4, 2016
46. ## math

The length and breadth of a rectangular paper were measured to be the nearest centimeter and found to be 18 cm and 12 cm respectively. Find the percentage error in its perimeter.

asked by kudu on February 21, 2015
47. ## math

the perimeter of a rectangle is 96cm ,the width is 15cm find its lengh. this is homework wich i have to return on friday,plllllllllllleeeeeeeeeeeeeeeeeeeeaaaaaaaaaaaaaaaassssssssssssseeeeeeeeeeeeee

asked by fizz on May 9, 2018
48. ## math

Find the perimeter of the given triangle. Round your answer to the nearest tenth if necessary. ∆BCH, if ∆CBH ∼ ∆FEH, ADEG is a parallelogram, BH = 4, HE = 7, EF = 25, and HF = 24.

asked by Samuel on December 16, 2017
49. ## maths

a rectangle is 8cm long and bcm broad. find the range of values of b if the perimeter is not greater than 50cm and not less than 18cm

asked by tola on June 1, 2017
50. ## math

find the perimeter of the actual object using the scale factor shown on the blueprint. each side is 3 centimeters long. 1cm=5m

asked by Taylor on February 14, 2013
51. ## Math

The perimeter of the parallelogram is 102 feet. Find m. Write your answer as a decimal or mixed number. The sides of the parallelagram are 3 and 3m

asked by Madeline on October 27, 2016
52. ## math

The length and breadth of a rectangular paper were measured to be the nearest centimeter and found to be 18 cm and 12 cm respectively. Find the percentage error in its perimeter

asked by kud on April 15, 2018
53. ## math-word problem

The width of a rectangle is fixed at 21cm. What lengths will make the perimeter greater than 80cm. Please help with this word problem I do not even know where to begin.

asked by Michelle on July 31, 2010
54. ## math

A rectangle has a perimeter of 12m. if each side is a whole number of meters, what are the possible dimensions for the length and width? List them and please explain your answer.

asked by shion on February 28, 2012
55. ## math

The length and breadth of a rectangular paper were measured to be the nearest centimeter and found to be 18 cm and 12 cm respectively. Find the percentage error in its perimeter.

asked by kudu on February 18, 2015
56. ## Math

I don¡¯t know how to slove this problem can someone help me£¿ The shorter leg of a 30¡ã60¡ã90¡ãtriangle is 2.5 feet long.Find the perimeter.

asked by Emily on April 22, 2016
57. ## Python programming

A standard problem in mathematics is to measure the area under a curve (or to integrate the function defining the curve). A simple way to do this is to approximate the area with a series of rectangles (whose areas are easy to compute). For example, we

asked by Anonymous on January 13, 2013
58. ## Math

Are these correct: 1a) Find the lateral surface area in square inches of the cone with the following dimensions: h= 24 in, radius = 10 in, slant height = 26 in. (Use Pi= 3.14) I didn't know how to do: Lateral Surface Area = ______ square inches (exact

asked by Mike on May 17, 2008
59. ## Algebra

How do you calculate the area of a rectangle. area of a rectangle is length x width.

asked by Joshua on August 19, 2007
60. ## Calculus

Use 5 right rectangles to estimate the area of the area under the graph of 25−x 2 from x = 0 to x = 5 using 5 left rectangles?

asked by Molly on April 12, 2013
61. ## Math

Determine the area of the region bounded by f(x)=7*e^(2x) and the -axis, between x=0 and x=2 . what is The area of the region ??

asked by LI on December 12, 2011
62. ## 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

asked by jo on March 25, 2016
63. ## Math

The area of each unshaded rectangle is given (the areas given are ( 30 in.², 45 in.², 72 in.²)). What is the area of the shaded rectangle?

asked by Susan on April 29, 2015
64. ## Calculus

Find the area of the shaded region. The area is shaded from 0,2 on the x-axis Given: y=0 and y= x^4-2x^3

asked by Katie on April 18, 2013
65. ## math

Consider the Standard Normal curve: (a) Find the area between z = -0.45 and z = 1.45 (b) Find the value of z such that the area to the right of z is 1.5%.

asked by yvonne bih on February 25, 2015
66. ## calculus

suppose that the area under the curve y=1/x from x=a to x=b is k. the area in terms of k, under the curve y=1/x from x=2a to x=2b? justify

asked by Anonymous on February 23, 2010
67. ## math

Can you double check my answer for me. The question is Corinne calculated the area of a paper plate to be 50.27 square inches. If the actual area of the plate is 55.42 square inches , what is the relative error in calculating the area, to the nearest

asked by Gail on June 9, 2013
68. ## Geometry

Imagine that all the people on Earth could stand side by side together. How much area would be needed? Would all the people on earth fit in Rhode Island? Explain your reasoning. Rhode Island, the smallest state in terms of area, has a land area of 1000

asked by Elizabeth Barnes on October 21, 2012
69. ## Physics

PLEASE HELP! I'm doing a physics demonstration, and in part of it I'm trying to explain why steel wool burns and normal steel doesn't. I know it's something to do with the smaller surface area and/or mass but I don't know WHY it burns because of this. Can

asked by Jo on September 5, 2006
70. ## geography

Can you check my answers please? 1. How does the continent you live on rank in land area when compared to all other continents? North America has the third largest land area of all the continents. 2. Port-au-Prince is the capital of what Caribbean Sea

asked by Reed on October 22, 2012
71. ## Basic Calculus-Optimization Problems

Hello, please help me. There is a question where I have to optimize the area of a field that is being fence in like this: [|] i.e. two rectangle fields, side by side: area= 2x by y. I get to use 200ft of fencing. From that diagram and the amount of fencing

asked by mary on March 16, 2012
72. ## pre-calc

construction of a rain gutter: a piece of rectangular sheet metal is 20 inches wide. it is to be made into a rain gutter by turning the edges to form parallel sides. let x represent the length of each of the parallel. a) give the restrictions on x. b)

asked by steph on November 11, 2011
73. ## math

Write a function rule for the area of a rectangle whose length is 5 ft more than its width. What is the area of the rectangle when its width is 11 ​ft? Write a function for the area A of the rectangle using the independent variable width W.

asked by walt on March 20, 2018
74. ## Math

Length of a rectangle is12m and the breadth is 10m and the inner area of the rectangle is 1.5m find the inner rectangle area

asked by Prithvi on February 19, 2016
75. ## Math Help

A rectangular prism has a square base with area 9 m2. The surface area of the prism is 78 m2. What are the dimensions of the prism?

asked by Vei on November 8, 2017
76. ## 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)

asked by Prime on January 14, 2013
77. ## math

looking at a square pyramid, if the size of the base remains the same and the height of the pyramid varies what are the minimum surface area and minimum volume the pyramid can have? The base is showing 2 in and the line on the right side of the base which

asked by m on January 5, 2011
78. ## Mathmatics

The highway department keeps its sand in a conical storage building that is 24 feet high and 64 feet in diameter. To estimate the cost of painting the building, the lateral surface area of the cone is needed. To the nearest square foot, what is the area?

asked by Yadlay on April 14, 2010
79. ## Math

A rectangle has sides of length x cm and 2x - 4cm and the length x cm at time t seconds is given by x = 2 + 3t, (t >=0) . Show that the area, Acm2 , the rectangle, in terms of t is A =12t + 18t^2 . Hence find the rate of change of the area at the instant

asked by Aaqib on January 30, 2015
80. ## math

Find the body surface area of a person who is 5 feet,4 inches tall and who weighs 107 pounds. Round your answer to the nearest hundredth. Use the Mosteller formula to calculate adult body surface area. Please helppppppppppppp!!!!!!! :(

asked by Andrea on March 27, 2018
81. ## math

a developer wants to enclose a rectangular grassy lot that borders a city street for parking. If the developer has 336 feet of fencing and does not fence the side along the street, what is the largest area that can be enclosed and what are the dimensions

asked by Jessica on November 8, 2011
82. ## history

Why is the South Texas plains region of Texas an area rich in Tejano culture A. its border with Mexico . B. its rich French history. C. the overwhelming amount of agriculture in the area. D. its connection to the American Indian population. I think it is D

83. ## Math

Which interval does the shaded area represent? (The picture shows the first quadrant with the graphs of y=x^2 and y=cosx; the shaded area is a rectangle with the top right corner being the intersection of the functions and the bottom right corner being the

asked by Katerina on January 14, 2016
84. ## CALCULUS

Sketch the region enclosed by the given curves. y = tan 3x, y = 2 sin 3x, −π/9 ≤ x ≤ π/9 then then find the area. i can sketch but cant find correct area

85. ## Calc

Find the area of the region bounded by the curves y2 = x, y – 4 = x, y = –2, and y = 1. So far I have found that the area of the trapezoid which is 13.5. But for the other two areas I cannot find them. They could be: 27/2 22/3 33/2 34/3 14 I believe

asked by Thomas on April 9, 2015
86. ## Math

An equilateral triangle and a regular hexagon have equal perimeters. What is the area of the triangle, if the area of the hexagon is 120? I don't get it

asked by Kizzy on December 13, 2013
87. ## Math

A triangle and trapezoid share a 15 inch base and a height of 10 inches. For what values of b is the area of the trapezoid less than twice the area of the triangle?

asked by Jessica on October 3, 2011
88. ## Financial

Suppose the population of Area Y is relatively young and the population of area O is relatively old but verything else about the two areas is the same. Would interest rates likely be the same or different in the two areas. Explain

asked by Anonymous on May 15, 2012
89. ## math

make triangles and find the area of those triangles and then add em together. I need to find the area of a polygon,breaking into simpler parts. how do you do it?

asked by jamay on April 19, 2007
90. ## programming

Write a program that asks for the length and width of two rectangles. The program should tell the user which rectangles has the greater area, or if the area are the same.

asked by Fran on February 24, 2011
91. ## math

A picture 16" x 24" has a frame 1" wide.Approximately how many times greater than the area of the frame is the area of the picture? a. 5 b. 45 c. 48 d. 80 e. 84 please answer and explain

asked by thomas on May 9, 2014
92. ## Geometry

Rectangle ABCD has diagonals AC and BD. E is the point of intersection of the two diagonals. If the area of triangle AEB is 8, what is the area of triangle ACD?

asked by Jen on November 20, 2010
93. ## Algebra

The surface area of a cylinder is approximately? a-- 151 m sq b-- 273 m sq c-- 179 m sq d-- 302 m sq my answer is Surface Area of a Cylinder = 2 pi r 2 + 2 pi r h c

asked by Steve on February 4, 2014
94. ## Pre Algebra

The area of a square postage stamp is 81/100 in. squared. What is the side length of the stamp? What is the formula of the area of a square?

asked by Steve on October 12, 2013
95. ## Calculus Area between curves

Consider the area between the graphs x+6y=8 and x+8=y2. This area can be computed in two different ways using integrals First of all it can be computed as a sum of two integrals where a= , b=, c= and f(x)= g(x)= I found a, but not b or c. I can't seem to

asked by Kelly on November 25, 2013
96. ## math

Find the area of the following plane figure. Find the altitude of a triangle whose area is 100 cm2 and whose base is 20 cm. Altitude =

asked by C on July 5, 2016
97. ## geometry

rectangle a is similar to smaller rectangle b. the scale factor is 5/3. if the area of rectangle a is 150 square inches, what is the area of rectangle b?

asked by josh on March 22, 2012
98. ## math

The surface area of spherical ball of radius r is given by the formula S=4(22/7)r2. Find surface area of ball of diameter 12cm.

asked by Sam on December 23, 2010
99. ## Geometry

The lateral area of a cylinder is 28 pi in^2. All of the dimensions are changed by the same factor and the new lateral area is 448 pi in^2. What was the dimensional factor change

asked by Anonymous on May 15, 2016
100. ## maths-areas

in triangle ABC P, Q AND R ARE the mid points of side AB, BC, CA.prove that area of parallelogram APQR=( 1/2)* area of triangle[ABC]

asked by anoynomous on March 15, 2013