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In Figure 2, AB and AC are tangents to t...

In Figure 2, AB and AC are tangents to the circle with centre O such that angle BAC = 40°. Then angle BOC is equal to

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In the given figure, PQ is a tangent at a point R of the circle with centre O. If angle TRQ = 30^(@) , then angle PRS is equal to

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In Figure-2 PQ is tangent to the circle with centre at O , at the point B. If angle AOB = 100^@ , then angle ABP is equal to (A) 50^@ (B) 40^@ (C) 60^@ (D) 80^@

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