Question

If each core of a cube is 3 centimetre, then its surface area is :
1. 54 Cubic Centimeter
2. 9 Square Centimeter
3. 54 Square Centimeter
4. None of these

Answer 1

Correct Answer - Option 3 : 54 Square Centimeter

Given:

Each core of a cube is 3 centimetre

Formula used:

Surface area of cube = 6 × side²

Calculation:

According to the question, 

Side = 3 cm

Surface area of cube = 6 × side²

⇒ 6 × 3²

⇒ 6 × 9

⇒ 54 cm².

∴ Its Surface area is 54 cm².