Question

Two opposite sides of a parallelogram are (2x - 5) cm and (40 - 3x) cm.The side adjacent to one measuring (2x-5) cm is 10 cm.Find its
perimeter....
explain step by step.​

Answer 1

Answer:

We know that

opposite sides of parallelogram are equal

therefore 2x-5=40-3x

5x=45

x=9

perimeter of parallelogram=13+13+10+10=46