The angle between the tangents drawn from a point on the director circle $x^{2} + y^{2} = 50$ to the circle $x^{2} + y^{2} = 25$ , is

45^{\circ}

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60^{\circ}

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90^{\circ}

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120^{\circ}

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Solution

The correct option is B $90^{\circ}$
Clearly, $x^{2} + y^{2} = 50$ is the director circle of the circle $x^{2} + y^{2} = 25$ .
So, the angle between the tangents is a right angle.
Ans: C

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