Question

The minute hand of a circular clock is 15cm.How far does the tip of the minutr hand move in an hour

Answer 1

In one 1 hour, the tip will complete one rotation.

Radius = 15 cm

So, distance (Circumfernce) = 2πr = 2×π×15 = 30π cm

                                                = 30 × 3.14 cm

                                               =  94.2 cm