A 2 inch by 2 inch by 2 inch block of wood has 1 inch diameter hole drilled. Through the center. Find the total volume and surface area. Round to the nearest tenth.

Answer 1

the original block has surface 6*2^2
subtract the two circles removed: 2*πr^2
add the curved surface of the hole: 2πrh

where r = 1/2 and h=2

the volume is of course 2^3 - πr^2h