Answer:
c. 486cm²
Step-by-step explanation:
Given parameters:
Length = 9cm
Width = 9cm
Breadth = 9cm
Unknown:
Surface area of the cube = ?
Solution:
The surface area of a cube is given as:
Surface area = 6l²
l is the length;
For a cube all the sides are equal
Surface area = 6 x 9² = 486cm²
