Question

2. The area of a trapezium of height 7 cm is 140 cm. If one of the parallel sides is 25 cm.
find the other side.​

Answer 1

Answer:

15

Step-by-step explanation:

Area of Trapezium is - 1/2(Sum of Parallel Sides)*H

let the other side be a variable

1/2*(25+x)*7=140

7/2*25+7x/2=140

175/2+7x/2=140

7x/2=280/2-175/2

x =105/2*2/7

x=15