Circles - Class X |

Formulae, Relations, Theorems etc. |

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TangentA line intersecting the circle at a point.

Point of contactPoint of intersection of circle and tangent

Tangents from same external point to the circle are equal.

Tangent is perpendicular to radius at point of contact.

Tangents are equally inclined to line joining centre of circle to external point.

Tangent

A line intersecting the circle at a point.

Point of contact

Point of intersection of circle and tangent

Tangents from same external point to the circle are equal.

Tangent is perpendicular to radius at point of contact.

Tangents are equally inclined to line joining centre of circle to external point.