Surface area of the cube = 294 mm²
Solution:
Side of the cube (a) = 7 mm
<u>Formula for the surface area of a cube:</u>
Surface area = sq. units
To find the surface area of the given cube:
Substitute a = 7 mm in the formula.
Surface area =
= 6 × 49
= 294 mm²
Surface area = 294 mm²
Option C is the correct answer.
Hence the surface area of the cube is 294 mm².
