CBSE Class 10 Maths Circles
Tangents to A Circle
The tangent to a circle is perpendicular to the radius through the point of contact.
Properties of Tangents
If point P lies on the circle, only one tangent can be drawn to the circle through the point of contact.
If the point P lies outside the circle, two tangents can be drawn to the circle of equal length.
The lengths of the tangents drawn from an external point to the circle are equal.
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