Warm up

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Warm up

• 1) Graph the two numbers and find the distance
  between them.
• -6 and 13
• 2) Sketch plane G containing ray OK.
• 3) If M is the midpoint and XM 4 x and MY
  2x 1, what is the length of XY?

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ANGLES

• It is a geometric figure made up of two rays that
  share a common endpoint.

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Constructing an Angle

1. Plot point O.
2. Draw ray OT.
3. Draw ray OY.
4. How do you label an angle?

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Parts of an Angle

SIDE of an ANGLE
VERTEX
SIDE of an ANGLE
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Types of Angles

• Acute Measure between 0o to 90o
• Right Measure of exactly 90o
• Obtuse Measure between 90o to 180o
• Straight Measure of exactly 180o

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ANGLE RELATIONSHIPS
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Adjacent Angles Two angles that share a common
endpoint and side
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Bisector of an Angle A ray that divides the
angle in two congruent angles.
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• Vertical Angles
• Two angles whose sides form opposite rays.
• They are always congruent.

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Linear PairTwo angles that are adjacent and form
a straight angle.
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Angle Addition Postulate
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• Its Angle Video Time!

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PRACTICE

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