Question

A. A cylinder just fits into a cube of side length 36 m Calculate the percentage

of empty space in the box.

Answer 1

21.5%

Explanation:

volume of cube: 36x36x36

volume of cylinder: πx18²x36

Cylinder percentage: (πx18²x36) / 36x36x36 = π / 4 = 0.785

percentage of empty space: 1 - 0.785 = 0.215 (21.5%)