Clocks

How long path will walk the end of the clock's minute-hand long 7 cm for 330 minutes? How long will walk in the same time hour-hand?

Correct result:

minute hand walk:  241.9 cm
minute hand walk:  20.2 cm

Solution:

$s_m=2\pi \cdot {\displaystyle \frac{330}{60}}\cdot 7=241.9\text{ cm}$

$s_h=2\pi \cdot {\displaystyle \frac{330}{12\cdot 60}}\cdot 7=20.2\text{ cm}$

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