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Angle Measure Objective: Name and identify angles.

Angle Measure Objective: Name and identify angles. Section 1.4. Ray. Part of a line. Angle. Formed by two noncollinear rays that have a common endpoint. Example 1. Name all angles with W as a vertex. Name sides of < 1. Write another name for <WYZ. Types of Angles.

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Angle Measure Objective: Name and identify angles.

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  1. Angle MeasureObjective: Name and identify angles. Section 1.4

  2. Ray Part of a line

  3. Angle Formed by two noncollinear rays that have a common endpoint.

  4. Example 1 • Name all angles with W as a vertex. • Name sides of < 1. • Write another name for <WYZ.

  5. Types of Angles Right Angle Obtuse Angle Acute Angle

  6. Example 2 1. <PMQ 2. <PMR 3. <QMS

  7. An angle divides a plane into three parts 1. Point A, D, and E lie on the angle. 2. Points C and B lie in the interior 3. Points F and G lie in the exterior.

  8. Angle Bisector A ray that divides an angle into two congruent angles.

  9. Example 3 If m <1 = 5x + 10 and m <2 = 8x – 23, find m < 2. YT bisects <XYW

  10. Example 4 If m <DCE = 4x + 15 and m <ECF = 6x – 5, find m <DCE.

  11. Example 5 If m <WYZ = 98 and m <ZYU = 4x + 25, find x.

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