Problem
(a) Draw and label the line \( P Q=8 \mathrm{~cm} \). [2] (b) Using a pair of compasses and a ruler only, construct an angle of \( 60^{\circ} \) at \( P \). [3] (c) Draw an angle of \( 40^{\circ} \) at \( Q \). \( [1] \) (d) Complete and label the diagram to form \( \triangle P Q R \). [2]
Solution
Step 1 ：Draw a line segment PQ of length 8 cm.
Step 2 ：With P as the center, draw a 60-degree angle using a pair of compasses.
Step 3 ：With Q as the center, draw a 40-degree angle using a protractor.
Step 4 ：Construct the point where the rays of the angles at P and Q intersect, label it as R, and form the triangle \( \triangle PQR \).
