Q.7 - Ex 20.1 - Chapter 20 I Area of a Trapezium and a Polygon - R D SHARMA CLASS 8 Math Solutions
7. The diameter of a wheel of a bus is 90 cm which makes 315 revolutions per minute. Determine its speed in kilometres per hour. R D Sharma Mathematics Chapter 20 Mensuration - I Area of a Trapezium and a Polygon Class 8
