Points A, B, C and D are concyclic points of a circle with centre O, such that ∠DOC = 73o. The measure of ∠ABC is 215o. What is the measure of ∠AOD?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 72o.
In the given figure
O is the center
∠DOC = 73° and ∠AOC = 215°
So, ∠AOD = 360 - 215 - 73 = 72°