Find the area of a trapezium whose parallel sides are 24cm and 20cm and the distance between them is 15cm.
Area of a trapezium =12× Sum of parallel sides × Distance between them
=12×(24+20)×15
=12×44×15
=22×15
=330cm2
A parallelogram has 1 set parallel sides = 20 cm and another set = 24 cm. If the distance between the 24 cm sides is 15 cm, then the distance between the 20 cm sides is ____ cm