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10. Circles
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Q1 of 93 Page 10

If PT is a tangent at T to a circle whose centre is O and OP = 17 cm, OT = 8 cm, find the length of the tangent segment PT.


Given that O is the center of the circle and OP =17 cm and the radius of the circle OT=8cm.


We need to find the length of the segment PT.


The line PT is the tangent line to the circle at the point T, the line through the centre is perpendicular to PT.



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3

O is the centre of a circle of radius 8 cm. The tangent at a point A on the circle cuts a line through O at B such that AB = 15 cm. Find OB.

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Find the length of a tangent drawn to a circle with radius 5 cm, from a point 13 cm from the centre of the circle.

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Questions · 93
10. Circles
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