Question

7

The total surface area of a cube is 486
cm”, then edge of cube is-​

Answer 1

Step-by-step explanation:

We know that :- T.S.A of cube is 6(side)²

So, 6(edge)²= 486

Therefore, (edge)² = 486

6

(edge)² = 81

So, edge = √81

edge= 9 cm

Hence,the edge of the cube is 9 cm