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

Tutors Answer Your Questions about Surface-area (FREE)

Question 260930: find the area of each figure . dimesons are in centimeters
Click here to see answer by richwmiller(17219)

Question 261098: what is the area of a cube whose sides are 12 feet long?

Click here to see answer by rfer(16322)

Question 261201: a pipe is 300cm long it has an internal diameter of 10cm and has a tkickness of 1cm
a)find its outer surface area
b)its mass if the pipe weghs 3g percm cubes
Click here to see answer by jsmallt9(3758)

Question 261344: What is the radius of a tennis ball with a surface area of 28 in.�?
A. 1.5 in.
B. 1.8 in.
C. 2.1 in.
D. 2.4 in.
Click here to see answer by Edwin McCravy(20055)

Question 261344: What is the radius of a tennis ball with a surface area of 28 in.�?
A. 1.5 in.
B. 1.8 in.
C. 2.1 in.
D. 2.4 in.
Click here to see answer by nerdybill(7384)

Question 261343: A cube is a square prism. If the side of the square is 8 cm, which value is the surface area?
A. 144
B. 256
C. 272
D. 384
Click here to see answer by Greenfinch(383)

Question 261316: The surface area of a cube is 24 cm2. Find the new surface area of the cube if the length of each edge of the cube is tripled.
Click here to see answer by Greenfinch(383)

Question 261406: What is the area of a rectangle that is 4cm length and the width is 3cm?
Click here to see answer by checkley77(12844)

Question 261418: What is the area of a rectangle that is 4cm length and the width is 3cm?
Click here to see answer by Ruli(21)

Question 261414: If you triple all dimensions of a cone, will the surface area triple?Thanks!
Click here to see answer by ankor@dixie-net.com(22740)

Question 261639: what is the surface area of a soccer field

Click here to see answer by unlockmath(1688)

Question 261767: Find the area of each circle. Round to the nearest tenth.
There is a drawing of a circle with a diameter of 21 ft. I divided the diameter in half to get a radius of 10.5. I then used the formula:A= pie r^.
A= pie r^
A= 3.14 (10.5)
A= 346.2ft
Did I do this right?
Click here to see answer by unlockmath(1688)

Question 261864: Find the area of a rectangle with base 2 yd and height 5 ft.
Click here to see answer by Stitch(470)

Question 261904: Find the perimeter.
X(0,2), Y(4,-1), Z(-2,-1)
Click here to see answer by solver91311(24713)

Question 261819: If the length of the sides of the cube is 2.1 feet, which is closest to the surface area of the box?

Click here to see answer by checkley77(12844)

Question 262106: john wants to cover his workbench with 10cm vinyl tiles. the surface area of the bench is 3.4 meters squared. how many tiles are needed to cover the bench?
Click here to see answer by mananth(16946)

Question 262311: V = 1/3 Pi r�h = 1/3Pi * 10� *24 = 240 Pi
V = 753.98 m�
SA = Pi r� + Pi r√2r + h�
SA = Pi (10� + 10√(10^2 + 24^2 )) = Pi (100 + 10√676)
SA =

How would I get the rest of this or did I even do it right?
Click here to see answer by stanbon(75887)

Question 262442: Ellen wants to make a walking path around the edge of her property. Her property is 500ft x 400ft. The walking path will be 3 ft wide. How much area in square feet will the walking path take up oon her property?
Click here to see answer by ankor@dixie-net.com(22740)

Question 262786: The perimeter of a rectangular garden is 250 feet. If the width of the garden is 53 feet, what is its length?
Click here to see answer by rfer(16322)

Question 262785: The length of a rectangle is five times its width. If the perimeter of the rectangle is 108 m , find its area.
Click here to see answer by EMStelley(208)

Question 262591: Calculate the surface area of the earth if the radius of the earth is 6400 kilometers.
Click here to see answer by ankor@dixie-net.com(22740)

Question 262993: A Hemispherical Dome,open at base,is made from a sheet of fibre.
if the radius of hemispherical dome is 40cm and 13/170 of the fibre sheet actually used was wasted in making the dome.
Find the cost of the dome at the rate of Rs.35 per cm square
(take π =3.14)
Click here to see answer by mananth(16946)

Question 263028: A can of vegetables has a diameter of 9.8 cm and is 13.2 cm tall. How much paper is required to make the label, assuming there is no overlap?
Click here to see answer by mananth(16946)

Question 263563: Hi. I'm having trouble finding the surface area for my geometry homework. I need an answer in the next 20 mins.! PLEASE HELP!

One shape is a cube. The base is 7 cm.
One shape is a rectangular prisim. The base is 5 in. The face is 3 in. The height is 1 in.
One shape is a rectangular prisim. Base is 5 in. Face is 4 in. Height is 3 in.
One shape is a rectangular pyramid. Base 4.5 meters. Height 4.5 m. Face 6.5 m.
One shape is rectangular prisim. Base 4.5 cm. Face 3 cm. Height 3 cm.
One shape is rectangular pyramid. Base 2 in. Face 2 in. Height 5 in.
PLEASE DO THOSE PROBLEMS FOR ME! I THINK I GOT THEM ALL WRONG! THIS IS GRADED! I NEED ANSWERS NOW! DO IT FOR ME PLEASE! GIVE ME THE ANSWERS!!!!! (:

Click here to see answer by drk(1908)

Question 263673: what is the formula of finding the surface area of a circle ? and is it squared or cubed ?
Click here to see answer by richwmiller(17219)

Question 264220: What is width of a rectangle if the length is 5 in. and the area is 30 square in.?

Click here to see answer by checkley77(12844)

Question 245118: 1. You are given 200 ft of fencing to enclose a rectangular garden plot. You can determine whatever dimensions you want for the rectangle as long as the perimeter is 200 ft. Will the garden always have the same area? Give examples. Is there any shape that could have a 200 ft perimeter and have more area than the rectangle?

Click here to see answer by Alan3354(69443)

Question 264521: Can you assist me with the following word problem?
The cost of Pergo Select Helsinki Birch laminate flooring is $5.89 per square foot if Nancy installs the flooring herself or $8.89 per square foot if she has the flooring company install it. Determine the cost of the florring in the living/dining room (25' X 22') if:
a. Nancy installs it herself.
b. Nancy has the flooring company install it.
Click here to see answer by stanbon(75887)

Question 264703: Draw the net and find the total surface area of the cylinder
Click here to see answer by Alan3354(69443)

Question 265045: a machinist drilled a conical hole into a cube of metal. If the cube has sides of length 6 centimeters what is the surface are of the cone shaped hole? 3.14 for pi
please help
have a diagram if you need it
Click here to see answer by Earlsdon(6294)

Question 265157: please help and explain your answer...... 7feet 5inches - 2feet 8inches
Click here to see answer by checkley77(12844)

Question 265217: how do you find the are of a shaded region?
Click here to see answer by stanbon(75887)

Question 265715: Explain the steps of a surface area problem an the diff formulas to do each shape i would very apreciate it thanks.
Click here to see answer by drk(1908)

Question 266109: hello, can you guys please help me? my question is a about a big pyramid made out of cubes starting with 1 cube at the top, then 8, then 21, and so on. Our question is how many sides will be painted. How many will have 0 sides painted, 1 side, 2 sides, 3 sides, 4 sides, 5 sides, and 6 sides, and all sides. I already know that there's gonna be a certain amount that some sides are not gonna be painted because some sides are going to be covered, like the bottom. We're trying to find out how many sides will be painted in a 10 story building. I also noticed that as it goes down by each floor the number of cubes are a perfect square but the number increases by two. like for the third floor there were 25 cubes, which is 5*5. then the fourth floor was 49 cubes in total. 7*7, so as you can see from 5 it increased by 2. So im trying to find a formula to find the number of shaded ones for each number of painted sides. And a formula for the whole thing. I would greatly appreciate your help, because as you can see I'm confused, and this project is hard!
-Laura! thank you!
Click here to see answer by drk(1908)

Question 266119: If a triangle has an area of 200 square feet and the height is 7.5 feet, how do you figure out the base?

Click here to see answer by user_dude2008(1862)

Question 266118: Show that (-1,-1), (9,4), (20,6), and (10,1) are the vertices of a rhombus, and then find the area of the rhombus.
Click here to see answer by jim_thompson5910(35256)

Question 266118: Show that (-1,-1), (9,4), (20,6), and (10,1) are the vertices of a rhombus, and then find the area of the rhombus.
Click here to see answer by drk(1908)

Question 266053: How many cubic feet are contained within the refrigerator?
Length 36 inches.
Width 33 inches.
Height 66 inches.
Click here to see answer by rfer(16322)

Question 266249: If the side of a square is decreased by 3 meters, the area is decreased by 45 square meters. Find the length of the original square.
Click here to see answer by vksarvepalli(154)

Question 266482: HOW TO DO SURFACE AREA ON A RECTANGULAR PRISM WHEN OVERLAPPED ? our teacher doesnt explain the formula of the rectangular prism... and doesnt know how to explain ANYTHING! i have a UNIT TEST on TUESDAY.. and i seem to understand absoloute nothing. I would prefer to ask my teacher for help... but he never demonstrates or teachees anything right.. I REALLY WANT A TUTOUR OF MY OWN OR ELSE I WILL FAIL GRADE 9 MATH.. WHEN IM A STRAIGHT A STUDENT..
Click here to see answer by JBarnum(2146)

Question 266652: Suppose the volume must be 50in^3, What are the values for r and h that will minimize the amount of sheet metal required to obtain this volume. I know volume is v= (pi)r^2h. I also know the surface area is sa= 2(pi)rh+2(pi)r^2.
I have been working on this all day. Any help would be greatly appreciated. Thanks
Click here to see answer by drk(1908)

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