Question

Find the volume of a cubes whose surface Area is 54cm 2

Answer 1

Step-by-step explanation:

surface Area is 54cm

surface area =

$6a {}^{2} \\ 54 = 6a { }^{2} \\ 54 \div 6 = a {}^{2} \\ 9 = a {}^{2} \\ \sqrt{9} = a \\ a = 3$

volume of a cube=

$a {}^{3} \\ = 3 {}^{3} \\ 27 \: cm {}^{3}$