Question

Find the side of a cube whose surface area is 726

Answer 1

Answer:

11

Step-by-step explanation:

surface area of cube = 726

6a² = 726

a² = 726/6

a² = 121

a = √121

a = 11

Answer 2

Step-by-step explanation:

$surface \: area \: of \: cube = 6 {(side)}^{2}$

$726 = 6 {(side)}^{2}$

$\frac{726}{6} = {(side)}^{2}$

$121 = {(side)}^{2}$

$\sqrt{121} = side$

$11 = side$