Question

Estimate the surface area of a cube with side length 9.9 in. A) 100 in2 Eliminate B) 400 in2 C) 600 in2 D) 1000 in2

Answer 1

Check the picture below.

$\stackrel{\textit{area of all 6 faces}}{6(9.9\cdot 9.9)\implies 6(98.01)}\implies 588.06~~ \approx ~~600~in^2$