Question

Draw a line $PQ=12.5$ cm. Divide it $7$ equal parts.

Answer 1

$\frac{PQ}{7}=\frac{12.5}{7}=\alpha \left(let\right)$

Draw a line PQ=12.5cm,

Take an arc of $\alpha$ length, and start cutting from P till Q to get 7 equal parts.