Question

One of the Adjacent sides of parallelogram is 40 cm more than the other side. Find the length of the longest side if the perimeter is 280cm ,

Answer 1

Answer:

90 cm

Step-by-step explanation:

Let shorter side be x (B)

Then longer side will be x + 40 (L)

Perimeter = 280 cm

We know perimeter of parallelogram = 2(L + B)

Therefore, 2(x + x + 40) = 280

                  (2x + 40) = 280/2

                  (2x + 40) = 140

                   2x = 140 - 40

                   x = 100/2

                   x = 50 cm

So, the longer side is x + 40 = 40 + 50 = 90 cm

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