Question

surface area of a cube is 486 sq cm. find it's side​

Answer 1

Surface Area of Cube = 486 cm²

⇒ 6 × (Side)² = 486 cm²

• Dividing both Sides by 6

⇒ (Side)² = (486 cm²)/6

⇒ (Side)² = 81 cm²

• Taking Root on Both Sides

⇒ Side = 9 cm

Answer 2

Answer:

Step-by-step explanation:

Surface area A= 6a²

a²= A/6

a²= 486/6

a²=81

Then a = 9