Question

A wheel of cycle turn four and a half revolution. By what angle does it turn

Answer 1

180....................

Answer 2

We know that :

One revolution = 360°

So, 4½ revolutions = 360° × 4½ = 1620°

But, here is the crux :

In general, angle turned by the wheel is said to be 180°, because angles repeat themselves after 2nπ Radians where n is any integer, because in real world, angles above 360° and negative angles do not exist.

Hope this helps.....