Question

A cube has edges measuring 5 inches. Find the surface area of the cube.

Answer 1

Answer:

150 square inches

Step-by-step explanation:

The surface area of the cube is

$S_A=A_1+A_2+A_3+A_4+A_5+A_6$

but it's a cube so all the areas are the same

$S_A=6A_1$

and the area of

$A_1=l^2$

$l=5\\\\A_1=5^2\\\\A_1=25$

so the surface area is

$S_A=6(25)\\\\S_A=150$square inches

Answer 2

Answer:

150 square inches

Step-by-step explanation:

The surface area is the exposed area, which would be 6 sides with an area of 25 and 25x6 is 150