Question

The adjacent sides of a parallelogram differ by 20cm. If its perimeter is 180cm, find its sides.

pls I want correct answers or I will report if any one spams

Answer 1

Answer:

one side is 35 cm , other is 55

Step-by-step explanation:

let the sides be X and X+ 20

perimeter of parallelogram = 2(l+b)

perimeter given is 180cm

so,

2(l+b) = 180 cm

then,

2(X+ X+20) = 180 cm

2(2X + 20) = 180cm

4X + 40 = 180cm

4X = 180 - 40 = 140 cm

X = 140/4 = 35 cm

so ,

one side (X) = 35cm

other side(X+20) = 35 + 20 = 55cm

Answer 2

Step-by-step explanation:

let adjacent side be =X

than sides are X and x-20

and we also know opposite sides of a parallelogram are equal

=)X+(x-20)+X+(x-20)=180

=)4x-40=180

=)4x=180+40

=)4x=220

=) X=220/4

=) X=55