Question

find the lenth of square whose perimeter is 80 cm​

Answer 1

$perimeter \: = 4 \times \: a \: \\ 80 = 4 \times a \\ \frac{80}{4} = a \\ 20 = a \:$

side of the square is 20cm.

Answer 2

Answer:

$\huge\rm\purple{AnsweR}$

• Perimeter = 80 cm

Perimeter of square = 4 × side

80 = 4 × side

side = 80/4

side = 20 cm

Hope it helps you