Question

find the surface area of cube whose volume is 729cube.

Answer 1

side of cube=√729=9
surface area of cube=6×(9)2
=6×81
=486

Answer 2

volume of cube = 729 unit cube
.: (side)³= 729
side. = ³√729 =9 units
surface area of cube = 6(side)² =6(9)² =6(81)
= 486 unit square.