Question

circle, is bisected at the point of contact.
Or
Prove that the lengths of tangents drawn from an external point to a circle are equal.​

Answer 1

Answer:

let a circle with centre O

PT,PQ are tangents

we know that tangents are perpendicular to radius of circle.

so angle QPT=AnglePQT. equation 1

and angle opq=angle opq(op is equal to oq). equation 2

so

subtracting eq.2from 1,we get

angle qpt equal to pqt

so,pt=qt (opposite angles are equal). proved..?..

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Answer 2

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