Question

the length of a tangent drawn from the external point to a circle are​

Answer 1

Step-by-step explanation:

If it is positive, the point lies outside the circle, and we can take it's square root to obtain the (positive) length of the tangent drawn from the point. If it is zero, that means the point lies on the circle and we get a tangent of length zero. And if it's negative, the point lies inside the circle.

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Answer 2

● The length of tangent segments drawn from an external point to the circle are equal.