3 years ago

2. In the diagram below, angle AOB = 66°Find angle OAB, giving reasons for your answer.

Mathematics

1 answer:

koban [17]3 years ago

3 0

Answer:

57°

Step-by-step explanation:

Δ AOB has 2 equal sides as radius of the circle, this is isosceles triangle

So the angles ∠OAB= ∠OBA

∠AOB= 66° and sum of 3 angles = 180°

So ∠OAB= (180° - 66°)/2= 57°

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2. In the diagram below, angle AOB = 66°Find angle OAB, giving reasons for your answer.​

2. In the diagram below, angle AOB = 66°Find angle OAB, giving reasons for your answer.