Question

Find the surface area and volume for the following composite figure.
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Answer 1

Explanation:

volume = lbd + πr²h

l = 12 , b = 7 , d = 4 , r = 3 and h = 10

V = 336 + 90π

surface area = [2(lb + ld + bd) - πr²] - [2πrh + πr²]

= 320 - 9π - 60 - 9π

= 260 - 18π