+252 Finnd the total area of a cube with an edge of 9.
A) 324 square units
B) 486 square units
C) 162 square units
D) 398 square units
+633 Since area is in square units rather than cube units, I'm going to assume this is the surface area, not the volume.
Each edge = 9, so each side has an area of 81 units2. Since a cube has 6 sides, the overall area is (side area) times 6. \(81 \times 6 = 486\) units2, so the answer is b.
