Question

The volume of a cube is 343 cm³. Its total surface area is 

A. 196 cm² 

B. 49 cm² 

C. 294 cm² 

D. 147 cm²

Answer 1

Gven that, 

Volume of cube = 343 cm³ 

a³ = 343 cm³

a = \(\sqrt[3]{343}\)

a = 7 cm 

We know that, 

Total surface area of cube = 6a² 

= 6 × 7 × 7 

= 294 cm² 

Hence, option C is correct