PDF chapter test TRY NOW

1. Find the area of a sector of a circle of radius \(28 \ cm\) and central angle \(45^\circ\).
 
Area of a sector \(=\) \(cm^2\)
 
2. The wheel of a motor cycle is of radius \(35 \ cm\). How many revolutions per minute must the wheel make so as to keep a speed of \(66 \ km/h\)?
 
Number of revolutions \(=\)