CBSE Class 10 Maths (Standard) 2020 · Paper 30/3/1 · Question 13(a)

Circles 1 mark Medium

In Fig. 2,

P A

and

P B

are tangents to the circle with centre

O

such that

∠ A P B = 5 0^{\circ}

, then the measure of

∠ O A B

is ________.

Fig. 2

Answer

∠ O A B = 2 5^{\circ}

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