In the figure, the pair of tangents AP and AQ, drawn from an external point A to a circle with centre O, are perpendicular to each other and length of each tangent is 4 cm, then the radius of the circle is

7.5 cm

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4 cm

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10 cm

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2.5 cm

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Solution

The correct option is B
4 cm

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In the figure, the pair of tangents AP and AQ, drawn from an external point A to a circle with centre O, are perpendicular to each other and length of each tangent is 4 cm, then the radius of the circle is

The correct option is B 4 cm

The correct option is B
4 cm