The two parallel sides of a trapezium are 19.8 cm and 7.2 cm. If the area of the trapezium is 135 cm2, find the distance between its parallel sides.
two parallel side of trapezium are 19.8 cm & 7.2 cm
Area of trapezium = 135cm2
distance between parallel sides = (?)
→ Area of trapezium = one parallelside+otherside2×h
A=a+b2×h
∴135=19.8+7.22×h
∴h=135×227
∴h=27027
∴h=10cm