Question

find the volume of a solid cube whose total surface area is 486cm

Answer 1

6a^2=486
a^2=81
a=9
volume =a^3
9×9×9=729 ans

Answer 2

Surface area = 486 cm²

Find the area of 1 surface:

Area = 486 ÷ 6 = 81 cm²

Find the length of 1 edge:

edge = √81

edge = 9 cm

Find the volume of the solid:

Volume = edge³

Volume = 9³

Volume = 729 cm³

Answer: The volume is 729 cm³