The length of a tangent from a point A at distance 5 cm from the centre of the circle is 4 cm. Find the radius of the circle,

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asked Mar 16, 2018 in Mathematics by shabnam praween (19,050 points) 5 6 8

The length of a tangent from a point A at distance 5 cm from the centre of the circle is 4 cm. Find the radius of the circle.

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answered Mar 16, 2018 by santoshjha (25,550 points) 4 5 6
selected Mar 27, 2018 by Vikash Kumar
 
Best answer

Let O be the centre and P be the point of contact.

Since tangent to a circle is perpendicular to the radius through the point of contact,

Hence, the radius of the circle is 3 cm.

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