Tutors Answer Your Questions about Surfacearea (FREE)
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 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 Kyrashea21(1) 
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 richwmiller(15954) 
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(14512) 
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 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(47455) 
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(69061) 
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) 

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