Calculate the volume of a cylinder that has a diameter of 8 inches and a height of 3 inches.

A. 24 in.³

B. 151 in.³

C. 604 in.³

D. 75 in.³

E. 43 in.³

this is what i got:
The volume of a cylinder is defined as pi times the radius squared times the height. First, find the radius. Since the diameter is 8 in, the radius is 4 in. (half of 8). 3.14 times 4 squared times 3 = 3.14 x 16 x 3. The volume is 150.72 cubic inches.

Question

Calculate the volume of a cylinder that has a diameter of 8 inches and a height of 3 inches.

A. 24 in.³

B. 151 in.³

C. 604 in.³

D. 75 in.³

E. 43 in.³


this is what i got:
 The volume of a cylinder is defined as pi times the radius squared times the height. First, find the radius. Since the diameter is 8 in, the radius is 4 in. (half of 8). 3.14 times 4 squared times 3 = 3.14 x 16 x 3. The volume is 150.72 cubic inches.

anonymous · Answer

help!!!!

anonymous · Answer

should i just pick b ??

anonymous · Answer

yes...

anonymous · Answer

volume = cross sectional area x height = (8/2)^2 pi x 3 = 151

anonymous · Answer

since that's the closest one and every other choice is way off.

anonymous · Answer

thanks :) you guys are awsome :)