Bell Work In your group, solve the following problems. The color indicate the person that’ll write the answer to the question. (4 questions about line.

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Presentation transcript:

Bell Work In your group, solve the following problems. The color indicate the person that’ll write the answer to the question. (4 questions about line segments: One with midpoint, one with entire length, one question about labeling congruent parts, one midpoint set up)

Chapter 1.6 Measuring Angles 13.0 Students prove relationships between angles by using properties of complementary, supplementary and vertical angles

Vocabulary Angle: formed by two rays with the same endpoint – Symbol: – Examples:

Vocabulary Acute angle: angle between 0 degrees and 90 degrees, 0<x<90

Vocabulary Right angle: Angle that is 90 degrees; x=90

Vocabulary Obtuse angle: angle between 90 degrees and 180 degrees; 90<x<180

Vocabulary Straight angle: angle that is 180 degrees; x=180

Vocabulary Congruent angles: angles with the same measure

Vocabulary Vertical angles: two angles whose sides are opposite rays Which angles are vertical angle?

Vocabulary Adjacent angles: two coplanar angles with a common side, a common vertex, and no common interior points Which angles are adjacent angles?

Vocabulary Complementary angles: two angles whose measures have sum 90

Vocabulary Supplementary angles: two angles whose measures have sum 180

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Homework P40 #1-8, 13-23, even