# area, perimeter

20,917 results, page 38
1. ## 7th grade masth asap hurry plz ms.sue somebody plz

The area of a circle is found with the formula A = pi r^2, where pi represents 3.14. If a tile artist is placing tiles in a circular mosaic pattern and the area of the circle is 658 square feet, what is the approximate radius of the circle in feet? Can you

asked by Delilah on October 9, 2012
2. ## Math

The area of a circle is found with the formula A= 3.14r2 where 3.14 represents 3.14. If a tile artist is placing tiles in a circular mosaic pattern and the area of the circle is 658 square feet what is the approximate radius of the circle in feet?

asked by Franchesca on October 11, 2013
3. ## Math

A rectangular garden is to be fenced off and divided into 3 equal regions by fencing parallel to one side of the garden. 200 feet of fencing is used. find the dimensions of the garden that maximizes the total area enclosed. what is the maximum area?

asked by Usman on June 15, 2011
4. ## Science Help

The process of desertification can occur when A. Plants usually found in the desert replace trees that have been cut down. B. Farmers use contour farming techniques. C. An area of forest is clear-cut. D. An area of forest is selectively cut. Is the answer

asked by Callie on November 21, 2014
5. ## Algebra II

12. A sphere has a radius of 4x + 1. Which polynomial in standard form best describes the total surface area of the sphere? Use the formula S = 4 r2 for the surface area of a sphere. (1 point) 64 x2 + 32 x + 4 64 x2 + 16 x + 4 *my answer 4 x2 + 32 x + 64 4

asked by Sandra on October 6, 2014
6. ## Science

I need help with questions regarding information about the Galapagos Island volcano. 1. where is the volcano located 2. how long has it been active 3. what kind of volcano is it 4. is it dangerous 5. what is the surrounding area like 6. what else is there

asked by Chan on May 27, 2015
7. ## geometry

i need to figure out side lengths of congruent right isosceles triangle with no lengths given. I know that the hypotenese is 1 per pythogoras constant and the area is a^2/2. I don't have to prove area just side lengths.

asked by carolyn on May 21, 2015
8. ## Referents

Give referents for the following: 1cm square = area of fingernail 1 inch square = ? could it be an area of a dice 1 metre square = ? could it be a picture frame? I don't know what referents to use for those two.

asked by Sally on October 1, 2010
9. ## maths

cutting a circle into equal section of a small central angle to find the area of a circle and olso find area by 4 a sector of rectangle from circle

asked by sohel on May 20, 2017
10. ## Area of circle.

The area of the circle is radius squared times 3.14. That gives you an area in square feet. The volume of the tank is that area times depth. That gives you a volume in cubic feet. Your comment about fish per ft makes no sense at all. Did you mean 2 fish

asked by bobpursley on March 5, 2007
11. ## Geo

What is the altitude of this cylinder: B ==> C? A. line BC B. segment BC C. ray BC D. Point BC MY ANSWER: A. Line BC What is the total surface area of this cylinder? Radius = 8 cm Height = 16 cm A. 128 pi cm^2 B. 256 pi cm^2 C. 384 pi cm^2 D. 1024 pi cm^2

asked by Aaden Caldwell on March 18, 2016
12. ## Mrs. Sue

What is the altitude of this cylinder: B ==> C? A. line BC B. segment BC C. ray BC D. Point BC MY ANSWER: A. Line BC What is the total surface area of this cylinder? Radius = 8 cm Height = 16 cm A. 128 pi cm^2 B. 256 pi cm^2 C. 384 pi cm^2 D. 1024 pi cm^2

asked by Aaden Caldwell on March 18, 2016
13. ## 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?

asked by britt on February 7, 2016
14. ## Math extra credit

To find the next address: If the owner imported 100 square feet of marble to decorate the façade of the house and 13 square feet of scrap was left when construction was completed, how much marble was used? Write and solve an equation To find the next

asked by Mariana on November 8, 2015
15. ## math

8 m _____________ |\ | 4 m | \ Garden| | \ | | floor \ | -------------- 8m I need help finding the area of the garden and the area of the floor. so please give me in full explanation.

asked by Abby on November 9, 2009
16. ## Calculus

Let F(a) be the area between the x-axis and the graph of y=x^2cos(x/4) between x=0 and x=a, for a>0 (consider the area to be negative if the graph lies below the axis). Find a formula for F(a).

asked by Catherine on September 10, 2011
17. ## Math

The diameter of a circle is equal to the side of a square. The ratio of the area of the circle to the area of the square is approximately A. pi/2 B. 2/pi C. 2/1 D. 11/14

asked by Michelle on July 31, 2018
18. ## maths

calculate the surface area of the following prism cuboid; 2cm 6cm 4cm what is the surface area of the cuboid

asked by molly on May 21, 2011
19. ## Math

The surface area of a prism is 54 square inches. What is the surface area of a similar prism that is smaller by a scale of 1/3?

asked by Karley on April 5, 2014
20. ## math

8 m _____________ |\ | 4 m | \ Garden| | \ | | floor \ | -------------- 8m I need help finding the area of the garden and the area of the floor. so please give me in full explanation.

asked by Abby on November 9, 2009
21. ## geometry

the pentagons are similar. the area of the smaller pentagon is 30m squared. what is the area of the larger pentagon in m squared?

asked by t on March 29, 2012
22. ## math

my math homework tells me to find the area of a circle using it's circumference. the circumference given was. can someone explain to me how to find the area?

asked by elijah on April 14, 2015
23. ## math

If 2 circle are enclosed in a rectangle, then find the ratio of the total area of the rectangle to the total shaded area.

asked by Arick on May 3, 2016
24. ## math

a square lawn 4m wide path surrounding it.if the area of the path is236m find the area of the lawn

asked by abhilasha on November 1, 2016
25. ## math

A sphere is inscribed in a cylinder. The surface area of the sphere and the lateral area of the cylinder are equal. true?

asked by danny on March 29, 2011
26. ## math

if the area of the square inscribed in a semicircle is 2cm^2,find the area of the square inscribed in a full circle

asked by flora on October 13, 2016
27. ## Math

Find the shaded area in the following figure if the rectangle inscribed in the circle has dimensions 3 ft x 4 ft. I know I find the area of the rectangle A=l*w, but what do I do next?

asked by Punkie on December 17, 2009
28. ## Vectors/Calculus

The question asks me to find the area of the triangle with the given vertices. (The area A of the triangle having u and v as adjacent sides is given by A=1/2 ||u x v||.) the vertices are: (0,0,0) (1,2,3) (-3,0,0)

asked by Krista on April 7, 2013
29. ## math - see if correct

If the area is x^2+5x+6m^2 and we know the area is a square which is base times height, we can factor the equation so that it comes out to (x+3)(x+2)since the height is x+3 then we know the base is x+2. (is this correct)

asked by mason on February 23, 2009
30. ## see if this is correct

If the area is x2 + 5x + 6m2 and we know the area is a square which is base times height, we can factor the equation so that it comes out to (x+3)(x+2) since the height is x+3 then we know the base has to be x+2

asked by mason on February 23, 2009
31. ## Math

How many times larger is the area of a square (Length of Sides = A) than the area of an equilateral triangle (Length of Sides = 0.5A)?

asked by Emma on February 21, 2015
32. ## Math

# 1 if the area of the parallelogram is 39cm2, what is its base? ____cm # 2 if the base of the triangle is 2 times its height, what is its area? ____cm need help

asked by i need help! on March 7, 2012
33. ## Calculus

The area of a wetland drops by 1/4 every 8 years. What percent of its total area disappears after 40 years? Percent lost %?

asked by Orla on March 11, 2013
34. ## Math

The area of a parallelogram with a side of 5.6 in is equal to the area of a rectangle with sides 7 in and 8 in. Find the altitude to the given side in the parallelogram.

asked by Steve on February 23, 2017
35. ## Calculus

Let F(a) be the area between the x-axis and the graph of y=x^2cos(x/4) between x=0 and x=a, for a>0 (consider the area to be negative if the graph lies below the axis). Find the formula for F(a).

asked by Catherine on September 14, 2011
36. ## Math

The area of a parallelogram with a side of 5.6 in is equal to the area of a rectangle with sides 7 in and 8 in. Find the altitude to the given side in the parallelogram.

asked by Sara on February 23, 2017
37. ## Calculus

Please help? Let F(a) be the area between the x-axis and the graph of y=x^2cos(x/4) between x=0 and x=a, for a>0 (consider the area to be negative if the graph lies below the axis). Find the formula for F(a).

asked by Claudia on September 15, 2011
38. ## Calculus

Please help? Let F(a) be the area between the x-axis and the graph of y=x^2cos(x/4) between x=0 and x=a, for a>0 (consider the area to be negative if the graph lies below the axis). Find the formula for F(a).

asked by Catherine on September 16, 2011
39. ## geometry

The area of a circle 200mm in diameter is approximately how many times greater than the area of a circle 40mm in diameter?

asked by wayne on February 14, 2013
40. ## physics

the diameter of the moon is 3480 km. A.)what is the surface area of the moon? B.)how many times larger is the surface area of earth?

asked by anonymous on August 27, 2014
41. ## maths

calculate the surface area of the following prism cuboid; scm 6cm 4cm what is the surface area of the cuboid

asked by molly on May 21, 2011
42. ## Math Calculus

Three sides of a fence and an existing wall form a rectangular enclosure. The total length of a fence used for the three sides is 240 ft. Let x be the length of two sides perpendicular to the wall as shown. Write an equation of area A of the enclosure as a

asked by Livia on August 19, 2010
43. ## Calculus

Find the area cut off by x=4 from the hyperbola x^2/9-y^2/4=1. Answer is 4.982 in the book. I have proceeded as under: Y=2/3*sqrt(x^2-9) and rhe reqd. area is double of integral 2/3*sqrt(x^2-9) from 3 to 4. Int= 2/3*[xsqrt(x^2-9)/2 –

asked by MS on March 28, 2014
44. ## Old -Linear programming - up where it may be found

Posted by Anonymous on Wednesday, November 26, 2008 at 8:49pm. P=-30x+25y Subject to 2x+3y>=30 2x+y=30 when x = 0, y = 10 when x = 15, y = 0 area above that line is in our region (are you sure your arrow is correct?) second constraint #2 2x+y

asked by Damon on November 27, 2008
45. ## drawing

suppose you copy a drawing of a polygon with given size factor. How will the side lengths, angle measures, and perimeter of the image compare to those of the original

asked by Anonymous on December 2, 2010
46. ## math

Im just not sure of this I keep getting confused? (1) Round the following number to the indicated place. 5,911 the nearest thousand. (A)6,000 (B) 5,910 (C) 6,010 (D) 5,900 (2) How do I find the perimeter of a figure

asked by PJ on September 25, 2008
47. ## math

in triangle ABC ,D and E are the midpoint of line AB andAC resp.angle A=angleB=angleC=angleD=60° DE=5cm find the perimeter of triangleABC.

asked by anupama on March 18, 2013
48. ## math

Three points are chosen uniformly at random from the perimeter of circle. The probability that the triangle formed by these is acute can be expressed as ab where a and b are coprime positive integers. What is the value of a+b?

asked by anonymous on June 3, 2013
49. ## math

If the lengths of the sides of a rectangle are integers, and if one side is 2 more than another, then the perimeter could equal A. 1998 B. 1999 C. 2000 D. 2002 I started this, but I'm not sure what they're asking and I don't know how to solve it.

asked by Ryan on July 21, 2015
50. ## geometry

Three points are chosen uniformly at random from the perimeter of circle. The probability that the triangle formed by these is acute can be expressed as a/b where a and b are co prime positive integers. What is the value of a+b?

asked by gorav on March 20, 2014
51. ## Math

if two trapezoids have the same area, do they have the same area?

asked by Earl on November 28, 2018
52. ## math

area is 60m by 8m what is the area?

asked by roxie on February 6, 2013
53. ## Statistics help

Consider the following. (Give your answers correct to two decimal places.) (a) Find the standard score (z) such that the area above the mean and below z under the normal curve is 0.3989. (b) Find the standard score (z) such that the area above the mean and

asked by DeeDee6 on June 14, 2013
54. ## Math help

Can someone give me a heads up on how to even start this problem.. Consider the following. (Give your answers correct to two decimal places.) (a) Find the standard score (z) such that the area above the mean and below z under the normal curve is 0.3989.

asked by Tom 6 on June 14, 2013
55. ## Math

A cylindrical tank has a height of 8 feet and a diameter of 2 3/4 feet. Use pi= 3.14 What is the lateral surface area? What is the lateral surface area ? If a quart of paint covers 100 square feet, how many quarts of paint will be needed to paint the

asked by Mike on May 16, 2008
56. ## calculus

P /|\ / | \ / | \ on this side there is an / | \ arc with A(θ) in the / | \ middle. the B(θ) /θ | B(θ)\ triangle is not equal O -------------- R to the θ triangle. Q the figure shows a setor of a circle with central angle theta. Let A(θ) be the area

asked by Reen on November 8, 2009
57. ## Math

Find the area of a circle whose circumference measures 100 cm. Area (to the nearest square centimeter) = cm2 I plugged in everything C = 2 r C=2x3.14x100= 628

asked by sarah on June 28, 2013
58. ## calculas

i didnot under stand the question ? need help Gas is escaping a spherical balloon at the rate of 4 cm3 per minute. How fast is the surface area of the balloon shrinking when the radius of the balloon is 24 cm? Given volume of sphere is V = 4/3 πr^3and the

asked by Anonymous on November 22, 2015
59. ## Calculus

A construction company wants to build a rectangular enclosure with an area of 1000 square feet by fencing in three sides and using its office building as the fourth side. Your objective as supervising engineer is to design the enclosure so that it uses the

asked by Joey on August 9, 2011
60. ## math

a farmer has 120 m of fencing to make two identical rectangular enclosures using an existing wall as one side of each enclosure. The dimensions of each closure are x metres and y metres as shown. Obtain and expression in terms of x only for the total area

asked by mecake2 on December 4, 2014
61. ## As physics

Please help and do it step by step all parts of questions and use: T = time(s) I=current (amps) Q=net charge on object (Coulombs) N=no electrons (and write if added or removed from object and how) E=elementary charge Calculate the number of free electrons

asked by cylinder on January 4, 2018
62. ## Geometry

Find the area of the following circle. ( = 3.14; round answer to the nearest whole number). Circumference = 120 cm. (Hint: Find r from C = 2r (round r to tenths); then find area).

asked by Ivan on January 16, 2011
63. ## math

ABCD is a square. Γ1 is a circle that circumscribes ABCD (i.e. Γ1 passes through points A,B,C and D). Γ2 is a circle that is inscribed in ABCD (i.e. Γ2 is tangential to sides AB,BC,CD and DA). If the area of Γ1 is 100, what is the area of Γ2?

asked by jack on June 17, 2013
64. ## Math

Find the shaded area in the following figure if the rectangle inscribed in the circle has dimensions 3 ft x 4 ft. I know I find the area of the rectangle A=l*w, but what do I do next? I know that the Theorem of Pythagoras, 3^2 + 4^2 = d^2. So I can find

asked by Anonymous on March 20, 2010
65. ## MATH OMG HELP

The base and height of an original rectangle are each increased by 15%. The area of the new rectangle is k/w times the area of the original rectangle. If k and w are relatively prime positive integers, find the value of k + w.

asked by Jujube on January 21, 2008
66. ## math

ABCD is a square. Γ1 is a circle that circumscribes ABCD (i.e. Γ1 passes through points A,B,C and D). Γ2 is a circle that is inscribed in ABCD (i.e. Γ2 is tangential to sides AB,BC,CD and DA). If the area of Γ1 is 100, what is the area of Γ2?

asked by jack on June 17, 2013
67. ## Math

A right triangle is formed by the origin and the x and y intercepts of the line 14x+7y=56. Find the area of the triangle. I know that Area of a triangle is 1/2bh, but how do I find the base and height? Thank you.

asked by Katie on November 28, 2015
68. ## math

The formula form the surface area of a cube is SA=6s^2 where s represents the length of a side of the cube. What is the surface area of a cube with the sides 4.5 centimeters long?

asked by Amy on January 20, 2015
69. ## Map Rectangle

The scale of the map is 1:1000. What are the actual dimensions of a rectangle which appears as 4cm by 3cm on the map? What is the area on the map in cm2. What is the actual area in m2.

asked by abc on October 16, 2014
70. ## Math

You will be designing a park your park must contain the following a rectangle 100yds x 120yds . A picnic n playground area must be add up to be at least 1/2 of the park the picnic area must have a circular garden

asked by Ariana on May 24, 2013
71. ## geometry

A right cylinder has the radius of 5 centimeters and height of 22 centimeters. Round to the nearest tenth. I need to find - Find Lateral Area and Find Surface area

asked by JOY on May 24, 2011
72. ## algebra function

Area of a window. A window is in the shape of a square of side s, with a semicircle of diameter s above it. Write a function that expresses the total area of the window as a function of s.

asked by Lizzy on October 6, 2007
73. ## math

suppose maya made another sign with an area of 48 square inches. would this sign be larger or smaller than the sign with an area of 48 square centimeters? explain how you know

asked by chris on April 22, 2015
74. ## 3 grade math ms sue

SUPPOSE MAYA MADE ANOTHER SIGN WITH AN AREA OF 48 SQUARE INCHES. WOULD THIS SIGN BE LARGER OR SMALLER THAN THE SIGN WITH AN AREA OF 48 SQUARE CENTIMETERS? EXPAIN HOW YOU KNOW.

asked by dw on March 13, 2012
75. ## math

Suppose Maya made another sign with an area of 48 square inches. would this sign be larger or smaller than the sign with an area of 48 square centimeters? Explain how you know.

asked by mimi on April 14, 2014
76. ## calculus

a trapezoid is a quadrilateral with (only) two sides (called bases) that are parallel. an isosceles trapezoid has two equal legs. the area of a trapezoid is A=(1/2)*h*(b1+b2) where b1 and b2 are the two parallel bases and h is the altitude. your problem: a

asked by robert on November 18, 2011
77. ## math

The area of a circle is found with the formula A =〖πr〗^2, where π represents 3.14. If a tile artist is placing tiles in a circular mosaic pattern and the area of the circle is 658 square feet, what is the approximate radius of the circle in feet?

asked by Hannah on October 1, 2014
78. ## maths --plse help me..

A school has a hall which is 22 m long and 15.5 m broad . A carpet is laid inside the leaving all around a margin of 75 cm from the walls . Find the area of the carpet and the area of strip left uncovered . If the width of carpet is 82cm ,find its cost at

asked by angel on December 14, 2012
79. ## maths --plse help me..

A school has a hall which is 22 m long and 15.5 m broad . A carpet is laid inside the leaving all around a margin of 75 cm from the walls . Find the area of the carpet and the area of strip left uncovered . If the width of carpet is 82cm ,find its cost at

asked by Anamika on December 14, 2012
80. ## drbob222,math , algebra

Sorry i made a typo it suppost to read 20m for one base not 12. Directions: Crafts. Rose's garden is in the shape of a trapezoid. If the height of the trapezoid is 16m, one base is 12m, and the area is 224m ^2, find the length of the other base. Area= 1/2

asked by jasmine20 on December 19, 2006
81. ## statistics

I am working on a problem in which you've helped someone else on a z-score percentile problem. I have my z-score and my number from the z-table. I'm trying to input it correct in spss but I'm not sure how to set it up. This is what I have so far...

asked by Tina on February 3, 2012
82. ## engineering mathematics 1

your father wants to fence a rectangular area in your backyard for a garden. one side of the garden is along rhe edgeof the yard is already fenced, so you only need to build a new fence along the other 3 sides of rectangle. if you have 80 meter of fencing

asked by athira on April 18, 2014
83. ## Algebra

Please look over- 1.) Find the area of a rectangle in which the base measures 20 centimeters and the height is half the length of the base. My Answer= area= 200cm squared 2.) Find the area of a parallelogram in which the height measures 14 inches and the

asked by Jamie on September 15, 2007
84. ## Math

Two perpendicular diamters(cutting each other at right angles) of a circle cut the circumference at four(4) points. A square is formed by joining the 4 points. If the circumference of the circle is 132cm, find the area of the square. so right here they

asked by Cindy on April 13, 2007
85. ## pre-calculus

the spread of oil leaking from a tanker is in the shape of a circle. If the radius r (in feet) of the spread after t hours is r(t)= 200 square root of t, find the area A of the oil slick as a function of the time t. You know that the area of a circle is

asked by Erica on October 3, 2006
86. ## Math

I have a 3 part question that I have the answers for but I am still having issues understanding it. Looking for help with the explanation / steps on how you would get the answer. Question 1) The width of a rectangular field is 3h yards and it's length is 3

asked by Dee on December 7, 2017
87. ## Math ttriangles

how would I find the hieght of a isocscles triangle if the base was 20 and the area was 240? To find the height of an isocsceles triangle With the area at 240 and the base at 20 aren't you supposed to divide 240 by 20? If so what is your answer? The area

asked by Sara on February 19, 2007
88. ## Maximum area.

A recatangular yard is to be made with 120 feet fencing. The yard is divided into 4 equal parts. And an existing property fence will be used for one long side. If x represents the width of the fence exeorsss its area A(x) in terms of x Determine the

asked by Zack on August 8, 2018
89. ## geometry

Use formulas to find the lateral area and surface area of the given prism round to nearest whole number Believe height 4m and base on side 7m, front 29m, other end 7.28m possible answers; 472m^2;486m^2 443m62;486m^2 472m62;479m^2 443m62;500m^2 Can someone

asked by Cody on May 25, 2012
90. ## Math

* Which is performing more efficiently? A car getting 12 km per liter of gas or one getting 25 miles per hour? * _______ hectares (ha) = 65,000 square meters (sq m) (EXACT answer) * 1200 grams = ________ pounds * A cubic centimeter is : A cube with an area

asked by Mike on March 7, 2008
91. ## Math

A recatangular pen is to be made with 120 feet fencing. The pen is divided into 4 equal parts. And an existing property fence will be used for one long side. 1) If x represents the width of the fence express its area A(x) in terms of x 2) Determine the

asked by Zack on August 8, 2018
92. ## Pre-Calculus

You have been hired by the Humane Society to construct six animal cages using 1400 feet of chain fence. Express the length and width using function notation. Include a graph with the area function with explanation of significance. Find the dimensions that

asked by Guadalupe on November 29, 2014
93. ## Pre Calculus

You have been hired by the Humane Society to construct six 2 by 3 animal cages using 1400 feet of chain fence. Express the length and width using function notation. Include a graph with the area function with explanation of significance. Find the

asked by Guillermo on December 6, 2014
94. ## Intermediate Algebra

A parcel delivery service has contracted you to design an open box with square base length x cm and height y cm has a volume of 3600 cubic cm. Find the total surface area in terms of x and y. Also determine the dimension for minimum surface area (round

asked by Ann on October 10, 2015
95. ## Help please? Math 141 (Pre-Cal) (Shapes)

Hi everyone I am lost on how to do this math problem: A. You have 180 feet of fencing with which to construct a rectangular pen. What is the maximum area you can enclose? B. Going back to part A, you decide to build your rectangular pen next to a large

asked by Gio on February 6, 2016
96. ## 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?

asked by Randy on January 8, 2012
97. ## 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?

asked by bex on June 6, 2014
98. ## pre calc

area of triangle XYZ given:side z=11 side x=7 and side y=13 what are the angles and area please? please explain

asked by jim on December 8, 2011
99. ## 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

asked by Kayla on December 12, 2016
100. ## 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

asked by samantha on May 5, 2011