How far will the tip of a 2cm-long minute hand of a clock move in 45 minutes?

π cm 3π cm 4π cm 2π cm

3π cm

Angle traced by the tip in 60 minutes = 2\(\Pi \) In 45 minutes = 2\(\Pi \)/60 x 45 = 3\(\Pi \)/2 L = r x \(\theta \) L = 2 x 3\(\Pi \)/2 = 3\(\Pi \)