Question

What is the surface area of a cube with side length 9 kilometers?

two hundred sixteen square kilometers

three hundred twenty-four square kilometers

four hundred eighty-six square kilometers

seven hundred twenty-nine square kilometers
@matricked @dg2 @xanny6

Answer 1

surface area of the cube=6a^2
a=9 plug in the value in the formula

Answer 2

use
surface area = 6*a^2 where a=length of side

Answer 3

here a=9
so u may get
four hundred eighty-six square kilometers