# The perimeter of a square is 40cm. How do you find its area?

Oct 17, 2015

$100 c {m}^{2}$

#### Explanation:

perimeter of the square is $4 s$

$4 s$ = $40$

$s$ = $\frac{40}{4}$

$s$ = $10$

area of the square is ${s}^{2}$

${10}^{2}$ = $100$

area of the square is $100 c {m}^{2}$