Question

A cube with a side length of 6 mm has a surface area to volume ratio of

Answer 1

The surface area (SA) of a cube, which has 6 faces, is the 6 times the area of one face, length×length, or:
${l}^{2} \times 6$
And the volume (V) of a cube is the length times width times depth, which are all the same (length×length×length), or:
${l}^{3}$
Therefore the SA/V ratio is:
$6 {l}^{2} \div {l}^{3} = 6( {6}^{2}) \div ( {6}^{3} ) = 6(36) \div 6 \div 216 = 216 \div 216 = 1$

Answer 2

It has a surface area to volume ratio of 1:1