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

pwolfey Nov 2, 2017

#1**+1 **

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 units^{2}. Since a cube has 6 sides, the overall area is (side area) times 6. \(81 \times 6 = 486\) units^{2}, so the answer is b.

helperid1839321 Nov 2, 2017