Question

Calculate the surface area of a cube whose volume is 8000 cu cm

Answer 1

Answer:

Volume = 8000 cm³

⇒ a³ = 8000

⇒ a = ∛ 8000 = 20 cm

⇒ LSA = 4a²

⇒ LSA = 4 ( 20 )²

⇒ LSA = 4  ( 400 )

⇒ LSA = 1600 cm²

⇒ TSA = 6a²

⇒ TSA = 6 ( 20 )²

⇒ TSA = 6 ( 400 )

⇒ TSA = 2400 cm²

This is the required answer.