Question

Draw ∠ABC of measure 120° and bisect it.

Answer 1

Steps for construction:-

1. Draw BC = 5 cm (any)
2. Place the centre of the protractor on B along the base line BC
3. Using protractor construct m∠ABC = 120°.
4. Draw an arc with centre at B and any fixed radius.
5. Mark the points of intersection of the arc with the arms as P and Q.
6. Keeping the same radius and with centres P and Q, draw arcs.
7. Mark the point of intersection of the arcs as D
8. Join BD. BD is the angle bisector of ∠ABC.