Question

If the perimeter of the trapezium is 42cm, a =10 b= 20 c = 6 d=?If the perimeter of the trapezium is 42cm, a =10 b= 20 c = 6 d=?

Answer 1

Answer

Given perimeter of trapezium is equal to 42 cm

Sides, a=10 cm, b=20 cm, c= 6 cm

Formula perimeter of trapezium = sum of four sides

Therefore, 42= 10+20+6+d

42= 36+d

42-36=36-36+d (subtract 36 from both the sides)

42-36=d

6=d

Therefore value of D= 6 cm