Question

07. The surface area of a cube if 486 cm². It edge is
(A) 8 cm
(B) 9 cm
(C) 6 cm
(D) 7 cm​

Answer 1

Answer:

Therefore, edge of square = 9cm.

Step-by-step explanation:

Hope it helps

Answer 2

Step-by-step explanation:

surface area =486cm^2

so

6s^2=486

then

s^2=486/6

s^2 =81

then s=√81

=9cm ans.