Question

ABCD is a square .One side is 4x ,and perimeter is 80 cm .Find the value of x .

Answer 1

Answer:

x=5

Step-by-step explanation:

perimeter=4*side

80=16x

x=5

Answer 2

Step-by-step explanation:

perimeter of square is (side)²

here side is given as 4x

hence

perimeter=(4x)².

80=16x²

x²= 5

x=√5

hope it helps...