Question

O is the centre of the circle. angle BAD = 40°.
Find angle BOD and angle BCD.​

Answer 1

Answer:

Solution

In triangle AOB and triangle OCD

OA=OB=OC=OD= radius

∠AOB=∠COD

By SAS congruency both triangles are congruent

∴∠BAO=∠OCD=40