'Secants intersect' diaporamas de présentation

10.5 Segment Lengths in Circles

10.5 Segment Lengths in Circles. Theorem. When chords intersect, the chords break into segments that are equal when multiplied. Theorem. When chords intersect, the chords break into segments that are equal when multiplied. Theorem.

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Tangents and Secants

Tangents and Secants. Advanced Geometry Lesson 3 Circles. Tangent. If a line is tangent to a circle, then it is perpendicular to the radius drawn to the point of tangency. Example :. is tangent to. A at point C. Find x. Example : Determine whether. is tangent to.

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MM2G3b Understand and use properties of central, inscribed, and related angles

Standard. MM2G3b Understand and use properties of central, inscribed, and related angles. Theorem 6.13. If a tangent and a chord intersect at a point on the circle, then the measure of each angle formed is one half the measure of its intercepted arc. =. a. m 1. 12. (130 o ). (125 o ).

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GEOMETRY: Chapter 10

GEOMETRY: Chapter 10. 10.4: Other Relationships in Circles. Theorem 10.12 If a tangent and a chord intersect at a point on a circle, then the measure of each angle formed is one half the measure of its intercepted arc. Image taken from: Geometry. McDougal Littell: Boston, 2007. P. 680.

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21B: Circle theorems

21B: Circle theorems. Intersecting chords. Intersecting chords are lines that cross over each other within a circle If two chords intersect like this, the following rule applies:. Example. Find m On chord CD, we have values 6 and 5 On chord AB, we have values 4 and m 6 x 5 = 4 x m 30 = 4m

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9-6 Secants, Tangents and Angle Measures

9-6 Secants, Tangents and Angle Measures. Secant A line that intersects a circle in exactly two points. Theorem 9-11 If a secant and a tangent intersect at the point of tangency, then the measure of the intercepted arc is twice the measure of the angle formed. Th. 9-11 m BC = 2( m ABC ).

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Apply Other Angle Relationships in Circles

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