Question

the area of trapezium is 100cm² and its height is 8cm. Find the lengths of the two parallel sides if one side is longer than the other by 5cm.

Answer 1

Step-by-step explanation:

let the length of one parallel side be x.

then,length of other parallel side = x+5

area=100 cm^2

height=8cm

a/q

1/2 × 8 × (x+x+5) = 100

4 ×(2x+5) =100

8x+20=100

8x = 100-20=80

x = 80/8= 10

hence , one parallel side = 10 cm

other parallel side = (10+5)cm = 15cm