Chapter 13.1.

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Presentation transcript:

Chapter 13.1

Warm up Identify the following angles as acute, straight, right, or obtuse: 33 80 90 91 180 Solve for the missing angle: HINT: this is a multistep problem! You must find the angle missing from the bottom right triangle first.

Chapter 13.1 angle relationships Vocabulary: Complementary Supplementary

Complementary angles m 1=16 m 1 = 62 m 1 = 34 m 1 = 55 m 2= 74 m 2 = 28 m 2 = 66 m 2 = 35

Complimentary angles

Supplementary Angles m 1 = 160 m 1 = 152 m 1 = 90 m 2 = 20 m 2 = 18 m 2 = 90

Supplementary angles

Practice!! Classify the following angles and supplementary, complementary or neither: 44 150 60 45 46 40 30 145 Solve for the missing angle: 60 15 x 45 x 20

Challenge Problem Solve for X X - 50 45

Challenge Problem Solve for X and then find all 3 angles

Challenge problem Solve for X and then find both angle measurements

Homework Page 711 #’s 9-17, 22-24, 26-28