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Mathematics-Online problems: | ||

## Solution to the problem of the (previous) week |

** Problem:**

From the drawings to scale read the number of the revolutions the arrow
accomplishes when the circle rotates once completely along the ``*M*''.

Determine the length the change of the rotation angle of
the arrow between the positions and depending on length as
well as the length itself.

**Answer:**

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** Solution:**

From the second drawing follows

Moreover, we obtain

The total angle is

[problem of the week]