i need help for a good grade

Question

Write an equation that you can use to find the value of .

Perimeter of square: 30 mm



An equation that you can use is... =30

 

.

Answer 1

Perimeter of a square = 4 times the length of a side

if a side = x then the Perimeter = 4x

P=30 mm = 4x

x = 30/4 = 7.5 mm