Answer:216 in^3
Step-by-step explanation:
Length=L
Surface area=216
surface area=6 x L^2
216=6xL^2
Divide both sides by 6
216/6=(6xL^2)/6
36=L^2
L^2=36
Take the square root of both sides
√(L^2)=√(36)
L=6
Volume of cube=L x L x L
volume of cube=6 x 6 x 6
Volume of cube=216