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A point P is 13cm from the centre of the circle. the lenght of the tangent drawn from P to the circle is 12cm find the radius of the circle



User Craftdeer
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1 Answer

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Answer:

The radius of the circle is 5 cm

Explanation:

The given parameters are;

The distance of the point P from the center of the circle = 13 cm

The length of the tangent from the point P to the circle = 12 cm

The circle diagram is created with Microsoft Visio, from which we have;

The line drawn from the center to the point P, the tangent line from P to the circle and the radius of the circle form a right triangle

The length of the radius of the circle, r, is given by Pythagoras theorem as, follows;

r = √((13 cm)² - (12 cm)²) = 5 cm

Therefore, the radius of the circle = r = 5 cm.

A point P is 13cm from the centre of the circle. the lenght of the tangent drawn from-example-1
User Shady Smaoui
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