Math, asked by jawaidsaman438, 9 months ago

a tangent is drawn to a circle from a point 17 cm away from its centre if the length of the tangent is 15 cm find the radius of the circle is

Answers

Answered by mkrgupta17
0

Answer:

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Answered by Utkarshj265
1

Answer:

Draw a circle with centre O.

Such that AB is a tangent of the circle and OB is the radius of the circle = 8 cm. And join AO such that AO = 17 cm.

Now in triangle AOB.

AB = under root (AO)^2 - (OB)^2 cm.

= under root (17)^2 - (8)^2 cm.

= under root 289 - 64 cm.

= under root 225 cm.

= 15 cm. (...Ans....)

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