'Inscribed angle' diaporamas de présentation

7.5

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GEOMETRY 3A CHAPTER 10 POWERPOINT PRESENTATION

GEOMETRY 3A CHAPTER 10 POWERPOINT PRESENTATION. CIRCLES AND SPHERES. LEARNING TARGETS. AFTER YOU COMPLETE THIS CHAPTER, YOU WILL BE ABLE TO: IDENTIFY FORMULAS FOR: CIRCUMFERENCE, DIAMETER, RADIUS SOLVE PROBABILITY PROBLEMS DETERMINE THE AREA OF A CIRCLE

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Warm up

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CENTRAL ANGLE

CENTRAL ANGLE. C. A. B. C. Answer: . A. B. D. C. A. B. By Construction:. Draw a circle with centre C. Draw radii AC and BC. Measure the angle formed. What is the measure of angle ACB? What is the measure of arc AB? Draw chords AD and BC. Measure ADB. What is m.

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Lesson 8-5

Lesson 8-5. Angle Formulas. Central Angle. Definition:. An angle whose vertex lies on the center of the circle. NOT A Central Angle (of a circle). Central Angle (of a circle). Central Angle (of a circle). Y. 110 ?. 110 ?. O. Z. Central Angle Theorem.

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Lesson 8-5

Lesson 8-5. Angle Formulas. Central Angle. Definition:. An angle whose vertex lies on the center of the circle. NOT A Central Angle (of a circle). Central Angle (of a circle). Central Angle (of a circle). Y. 110 ?. 110 ?. O. Z. Central Angle Theorem.

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Learning Target 8

Learning Target 8. Angle Formulas. Central Angle. Definition:. An angle whose vertex lies on the center of the circle. NOT A Central Angle (of a circle). Central Angle (of a circle). Central Angle (of a circle). Y. 110 ?. 110 ?. O. Z. Central Angle Theorem.

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Properties of a circle

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A chord that goes through the center of a circle

A chord that goes through the center of a circle. diameter. A line that is tangent to more than one circle but does not cross between the circles. Common external tangent. A segment from the center of a circle to any point on the circle. radius.

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Inscribed Angles

Inscribed Angles. May 13, 2008. What is an inscribed angle?. An inscribed angle is an angle whose vertex is on a circle and whose sides contain chords of the circle. We say that angle 1 above intercepts the arc shown in red. Measure of an inscribed angle.

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Warm-Up

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Inscribed Angles

Inscribed Angles. By the end of today, you will know what an inscribed angle is and how to find its measure. Inscribed Angle. An inscribed angle is an angle whose vertex is on a circle. Intercepted Arc.

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Angles, Circles, and parts of Circles

Angles, Circles, and parts of Circles. secant: a line, ray, or segment that contains a chord chord: segment has endpoints on circle t angent: a line, ray, or segment that touches the circle in one point. Tangent: a line, ray, or segment that only intersects the circle at one point.

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10.4 Inscribed Angles

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11.3: Inscribed angles

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10.3 Inscribed Angles

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Secant/Tangent Theorems

Secant/Tangent Theorems. Secant - Secant Intersecting on circle. This is just an inscribed angle. A. 1. B. Secant - Secant Intersecting outside circle. D. C. 2. E. F. Secant - Tangent Intersecting on circle. Notice the vertex of the angle is ON

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The Many Parts of a Circle

A. B. T. The Many Parts of a Circle. Secant. Chord. Tangent. Chords and Diameters:. Points on a circle can be connected by segments called chords . A chord of a circle is a segment joining any two points on the circle.

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Inscribed Angles and Arcs

Inscribed Angles and Arcs. An inscribed angle is an angle whose vertex lies on a circle and whose sides are chords of the circle. Inscribed Angle Theorem. The measure of an angle inscribed in a circle is equal to half the measure of the intercepted arc. Right Angle Corollary.

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