Question

the perimeter of a parallelogram 140cm.if one sides is longer than the other side by 10cm find the length of each its side​

Answer 1

Let the first side is x

then the second side become (x+10)

According to the question

2(x+x+10) =140

2(2x+10)=140

2x+10=70

2x=70-10

2x=60

x=30

first side=x=30cm

second side=x+10=40cm

Answer 2

$\mathbb\boxed{SOLUTION}$

Let one side be x

=> The other side = x+10

As we know, the opposite sides of a parallelogram are equal

Perimeter = Sum of all sides = 2(l+b)

=> 2(x+x+10) = 140

=> 2(2x+10) = 140

=> 4x + 20 = 140

=> 4x = 120

=> x = 30cm

=> x+10 = 40cm

The sides are 30cm,40cm,30cm,40cm