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Secants, Tangents and Angle Measure

Secants, Tangents and Angle Measure. A secant is a line that intersects a circle in exactly two points. Example: . If a secant and a tangent intersect at the point of tangency, then the measure of each angle formed is one – half the measure of its intercepted arc. Example: .

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Secants, Tangents and Angle Measure

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  1. Secants, Tangents and Angle Measure

  2. A secant is a line that intersects a circle in exactly two points. Example:

  3. If a secant and a tangent intersect at the point of tangency, then the measure of each angle formed is one – half the measure of its intercepted arc. Example:

  4. If two secants intersect in the interior of a circle, then the measure of an angle formed is one half the sum of the measures of the arcs intercepted by the angle and its vertical angle.

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