CBSE Class 10 Maths (Standard) 2015 · Paper 30/1/1 · Question 4

Circles 1 mark Medium

In Fig. 1,

P A

and

P B

are tangents to the circle with centre

O

such that

∠ A P B = 5 0^{\circ}

. Write the measure of

∠ O A B

Figure 1

Answer

∠ O A B = 2 5^{\circ}

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