## Task 4

Draw the line segment $\overline{A B}$ of length $11 \mathrm{~cm}$! Mark the point $C$ on this segment so that the segment $\overline{A C}$ is $5 \mathrm{~cm}$ shorter than the segment $\overline{A B}$.

How long is the segment $\overline{A C}$?
The line segment $\overline{A C}$ is $6 \mathrm{~cm}$ long.

### 11.7.2 2nd Round 1970, Class 2