Question:
Using the protractor, draw a right angle. Bisect it to get an angle of measure 45°.
Solution:
Steps of construction:
1. Draw an angle ABC of 90°.
2. With B as the centre and any radius draw an arc which intersects AB at P and BC at Q.
3. With P as center and radius more than half of PQ draw an arc.
4. With Q as center and same radius draw an arc which intersects the previous arc at R.
5. Join RB.
Therefore ∠RBC = 45°