Questions on Geometry: Area and Surface Area answered by real tutors!

Tutors Answer Your Questions about Surface-area (FREE)

Question 890181: a circle has area of 50cm, what is it's radius?
Click here to see answer by tommyt3rd(5050)

Question 891773: May you please help me and explain it to me thank you. A rectangle has a length of 6 cm and an area of 24 cm�. If the radius of the circle is as long as the width of the rectangle, what is the circumference of the circle?

Click here to see answer by josgarithmetic(39799)

Question 891786: May you please help me with this question. A circle has an area of 25 pie centimeters squared .If one side of the square is the same length as the radius of the circle, what is the perimeter of the Square?
F 20 cm
G 25 cm
H 50 cm
J 75 cm
K 100 cm
Click here to see answer by robertb(5830)

Question 892443: how much greater is the combined surface area of two cylinders each with a height of 4cm and a radius of 2cm than the surface area of a single cylinder with a height of 8cm and a radius of 2cm?
Click here to see answer by lwsshak3(11628)

Question 892608: The great circle has an area of 289pie square feet.
Calculate the surface area and volume.
Click here to see answer by jim_thompson5910(35256)

Question 892650: An 80 pound bag of concrete covers 0.6 cubic feet. The dimensions of the driveway being done is 10ft by 6ft and 1ft deep. How many 80 pound bags of concrete do you need?
Click here to see answer by LinnW(1048)

Question 892698: how do I solve this? Area = 1/2 (6√2)(2√20)
thanks I got confuse.
Click here to see answer by Theo(13342)

Question 892899: There are two similar erasers, yellow eraser is 16cm and has surface area of 52, and the white eraser is 2cm,find the surface area?
Click here to see answer by Theo(13342)

Question 893064: the area of larger circle A is 16 times greater than smaller circle B. The radius of larger circle A will be how many times greater than that of smaller circle B?
A. 8
B. 16
C. 4
d. 2
Click here to see answer by Alan3354(69443)

Question 893208: If I have 30 square meters of pavers, how wide a border can I put around a swimming pool with an outside diameter of 6 metres, Anyone who can even tell me how to work it out would be helpful also

Click here to see answer by ankor@dixie-net.com(22740)

Question 893509: The surface area of the sphere A= 81 pi in.^2
Click here to see answer by Alan3354(69443)

Question 893830: a rectangular building is 120m long and 80m wide. stan made a scale model of the building that is 48cm long. the area of the scale model in squared centimetres is
Click here to see answer by josmiceli(19441)

Question 894380: what is the height from base to top in 5 adjacent sphere ??
Click here to see answer by Alan3354(69443)

Question 894646: area of triangle is half area of square the perimeter of square 224 cm. what is the area of traingle
Click here to see answer by Alan3354(69443)

Question 894646: area of triangle is half area of square the perimeter of square 224 cm. what is the area of traingle
Click here to see answer by rothauserc(4718)

Question 894755: how do u find the area of a circle

Click here to see answer by stanbon(75887)

Question 894968: how do you find the surface area of rectangle with the length of 5 inches a width and height 7 inches
Click here to see answer by richwmiller(17219)

Question 894968: how do you find the surface area of rectangle with the length of 5 inches a width and height 7 inches
Click here to see answer by harpazo(655)

Question 894967: what is the surface area of a rectangle with the width of 10 length of 13 and height of 2 inches
Click here to see answer by harpazo(655)

Question 895506: Determine the measure of the central angle for a regular 7-sided polygon, round answers to one decimal place
Click here to see answer by Edwin McCravy(20081)

Question 896458: A thick-walled metal pipe of length 20 cm has an inside diameter of 2.0 cm and an outside diameter of 2.4 cm. What is the total surface area of the pipe, counting the ends in meters squared?
Answer: 279

Click here to see answer by josgarithmetic(39799)

Question 896548: Please help me solve this problem: A closed box is to be constructed with square ends. The surface area of the box is 1000 square inches. Express its volume as a function of the length of its end.
Click here to see answer by josgarithmetic(39799)

Question 896515: The volume of the boat is 490^3.
1 . find the perpendicular height of the triangle
2 . what will happen to the surface area if all dimensions are bisected
Click here to see answer by Alan3354(69443)

Question 896612: You have a 15 ft. ladder, if it has to be 2 ft. away for every 5 ft. of ladder length, how far up the wall would the ladder reach?
Click here to see answer by rfer(16322)

Question 896772: The length of a rectangle is three times its width.
If the perimeter of the rectangle is
80yd
, find its area.
Click here to see answer by JulietG(1812)

Question 896848: A sphere has a radius of 24 cm. A rectangular prism has sides of (a), (a/2), (a/4).
a. Determine (a) of a prism that has the same volume as the sphere.
b. Determine (a) of a prism that has the same surface area as the sphere.
I found the value of the sphere and tried to find the value of the prism, to subtract the prism from the sphere, and then determine the diameter of the prism to find (a). However, I couldn't go only having the radius and volume of the sphere.
Please I need some help. Thank you very much in advance.
Click here to see answer by josgarithmetic(39799)

Question 896893: Topic-Problem-solving with Perimeter, Area, and Volume
In the U.S. the standard �Letter� size sheet of paper measures 8� x 11 inches. Elsewhere in the world, paper is sized using an International
Standard (ISO) sizing system. The dimensions of the standard printer paper, called ISO A4, in this system measures 210 x 297 mm.
a.Which paper has a larger perimeter?
b.Which paper has a larger area?
c.The dominance of the �Letter� format instead of
ISO A4 as the common laser-printer paper format in North America causes a lot of problems in daily
international document exchange between the U.S. and the rest of the world.If you wanted to print a document formatted to the size of ISO A4 paper onto U.S.�Letter�-size paper, do you think the margins would look bigger or smaller?Why
Click here to see answer by josgarithmetic(39799)

Question 897233: one square has side length s and another square has side length 2s. what is the ratio of the larger square to the area of the smaller square? justify your answer
Click here to see answer by Alan3354(69443)

Question 898184: the formula for the area of a triangle is A=1/2bh, where b is the length of the base and h is the height. if the triangle has a 13cm base and an area of 91cm squared what is height?

The teacher didn't explain this very well and i was wondering how to set it up

Click here to see answer by Fombitz(32388)

Question 898316: The total surface area of a sphere is given by A= 4πr^2. Find r when the A = 616 cm^2 and π = 22/7?
Click here to see answer by DrBeeee(684)

Question 898317: The total surface area of a sphere is given by A= 4πr^2. Find r when the A = 616 cm^2 and π = 22/7?
Click here to see answer by DrBeeee(684)

Question 898348: from a circular sheet of paper of radius 25 cm a sector area 4% is removed. if the remaining part is used to make a conical surface then the ratio of the radius and height of cone?
Click here to see answer by Theo(13342)

Question 898554: In a regular hexagon PQRSTU, vertices P and R are (0,0) and (7,1). Now find the area of the hexagon.
Appreciate your help. Thank you.
Click here to see answer by Alan3354(69443)

Question 899508: how do you work out the volume of a cylinder using pi

Click here to see answer by Fombitz(32388)

Question 899858: A cone of radius 3 cm and slant height 6cm is cut into four identical pieces. Calculate the total surface area of the four pieces.
Any help would be appreciated!! maths exam to mmorow!!
Click here to see answer by MathLover1(20855)

Question 899901: A man 6ft tall wishes to find the height of a certain four-story building. He measures its shadow and finds it to be 28ft long, while his own shadow is 3 1/2ft long.how tall is the building?
Click here to see answer by ewatrrr(24785)

Question 899979: What is the area of a tablecloth needed to cover a tabletop that measures 2 1/3 feet on each side
Click here to see answer by rfer(16322)

Question 900302: A man has a rectangular garden.one length of the garden lies along a patio wall.However , the rest of the garden is twice its width ,what is the area of the garden
Click here to see answer by JulietG(1812)

Question 900787: The perimeter of one face of a cube is 20 cm. What is the surface area?
Click here to see answer by Jc0110(165)

Question 901285: how do i work out the volume of half a prism if the circumference is 1.2cm and the length is 350cm
Click here to see answer by rothauserc(4718)

Question 901991: How do you find the surface area and volume of a cylinder or rectangular prism with a whole or chunk out of the middle? What's the formula I mean, thanks a ton!
Click here to see answer by josgarithmetic(39799)

Question 902169: What is the area of a square inscribed in a circle with a radius of 3cm long? Please give me a solution.
Click here to see answer by Alan3354(69443)

Question 902287: What is the area of a disk with a radius Z hieght A?Explain.

Click here to see answer by Fombitz(32388)

Question 902376: What is the area of the polygon given below?
Click here to see answer by Alan3354(69443)

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