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9-5 Tangents

9-5 Tangents. Tangent to a circle:. is a line in the plane of the circle that intersects the circle in exactly one point. If you spin an object in a circular orbit and release it, it will travel on a path that is tangent to the circular orbit. Theorem 9-8:.

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9-5 Tangents

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  1. 9-5 Tangents

  2. Tangent to a circle: is a line in the plane of the circle that intersects the circle in exactly one point. If you spin an object in a circular orbit and release it, it will travel on a path that is tangent to the circular orbit.

  3. Theorem 9-8: If a line is tangent to a circle, it is perpendicular to the radius drawn to the point of tangency.

  4. Common Tangent: A line or line segment that is tangent to two circles in the same plane Two types of common tangents: Common Internal Tangent: Common External Tangent:

  5. Theorem 9-10: Tangent segments to a circle from the same external point are congruent. (You may think of this as the "Hat" Theorem because the diagram looks like a circle wearing a pointed hat.)

  6. E M L K LK and TE are tangent to circle M, m<EML = 66, KM = 15, And LK = 36. Find each measure m<MKL = 90 m<ELM = 24 EL = 36 mKPE = 132

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