Question

5. The perimeter of a parallelogram is 180 cm. One of its sides is greater than the other by 30 cm. Find the
perimeter.
4. Find each angle of a parallelogram if two consecutive angles are in the ratio 1:3.
length of the sides of the parallelogram.
logrom if one angle is 20° less than twice the smallest angle.​

Answer 1

Answer:

5.Perimeter=2(l+b)=180cm

let length be=x cm

breadth be=x+30 cm

Acc. to question-

2(x+x+30)=180cm

2x+2x+60=180cm

4x+60=180cm

4x=180-60

4x=120

x=120\4

x=30