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Today we will look at some angle relationships!

Today we will look at some angle relationships!. It takes two to tango!. Vertical Angles Adjacent Angles Complementary Angles Supplementary Angles. Special Angle Pairs: 1) Vertical Angles – the angles formed on opposite sides of intersecting lines.

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Today we will look at some angle relationships!

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  1. Today we will look at some angle relationships! It takes two to tango! • Vertical Angles • Adjacent Angles • Complementary Angles • Supplementary Angles

  2. Special Angle Pairs: 1) Vertical Angles – the angles formed on opposite sides of intersecting lines. Vertical angles are always congruent 1 <2 and <4 are vertical angles so we know m<2 = m<4 4 2 3

  3. 2) Adjacent Angles – are angles that share a common vertex and a common side. 1 1 2 1 2 2

  4. Complementary Angles – two angles whose sum is 90 degrees Supplementary Angles – two angles whose sum is 180 degrees

  5. Complementary Angles 90 - 60 = X 30 = X 60 X

  6. What is the complement of a 72 degree angle? What is the complement of a 35 degree angle? 18 degrees 55 degrees

  7. Supplementary Angles 180° 360° 38 X X = 180-38 X = 142 degrees

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