Answer:
294cm

Explanation:
A cube has 6 faces
To find out the area of one face, you'd have to do 7x7 (7
).
To find out the total surface area of the cube, use this equation to help you:
AREA= 6(the amount of faces of the cube) × 7
(the area of ONE face)
so in other words...
AREA=6×7

AREA= 294cm

hope this helped:)