## Task 4

A rectangle is $4 \mathrm{~cm} 8 \mathrm{~mm}$ wide and twice as long. Calculate the sum of all side lengths of the rectangle!
$2 \cdot 4 \text{ cm} 8 \text{ mm}+2 \cdot 2 \cdot 4 \text{ cm} 8 \text{ mm}=28 \text{ cm} 8 \text{ mm}$