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a line segment through a point P cuts a circle in two points A & Bsuch that PA=16 & PB=9,the length of tangents from points to the circle is ?

a line segment through a point P cuts a circle in two points A & Bsuch that PA=16 & PB=9,the length of tangents from points to the circle is ?

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1 Answers

Badiuddin askIITians.ismu Expert
148 Points
14 years ago

Dear rahul

accoriding to 1 theorem of circle

 

PT2 =PA*PB   where PT is tangent of circle

 so  PT=(16*9)1/2

          =12


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