Question

the minute hand of a watch is 35 cm long . how far does its tip move in 18 minutes​

Answer 1

Answer:

In 18 minutes the tip moves a distance of 66 cm.

Step-by-step explanation:

Distance covered by tip :-

$2\pi \: r \times \frac{18}{60}$

As one revotution has 60 minutes

$= 2 \times \frac{22}{7} \times 35 \times \frac{18}{60} \\ = 2 \times 22 \times 5 \times \frac{3}{10} \\ = 2 \times 22 \times \frac{3}{2} \\ = 22 \times 3 \\ = 66$

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