Complementary and Supplementary Angles.

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Presentation transcript:

Complementary and Supplementary Angles. Objective: Learn to find Complementary and Supplementary Angles.

Complementary and Supplementary Angles: Complementary Angles Supplementary Angles Two angles that add up to 90 degrees. For example: 300+ 600 = 900 So 30 and 60 are complementary angles. Two angles that add up to 180 degrees. For example: 450 + 1350 = 1800. So, 45 and 135 are supplementary angles.

Examples: Example 1: Find the missing complementary angles. Example 2: Find the missing supplementary angle. ____________________________ __________________________

How to use a protractor to measure angles in 3 steps:

Homework: (part 1) Find the missing complementary or supplementary angle.

Homework: (Part 2)