X = 6 ED = 10 DB = 10 EB = 20 Warm Up.

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x = 6 ED = 10 DB = 10 EB = 20 Warm Up

Section 1.5 Describe Angle Pair Relationships We will fill out the foldable Two angles are complementary angles if the sum of their measures is 90 degrees. Each angle is the complement of the other. Two angles are supplementary angles if the sum of the measures is 180 degrees. Each angle is the supplement of the other.

EXAMPLE: a. Given that <1 is a complement of <2 and m<1 = 68 degrees, find m<2. b. Given that <3 is a supplement of <4 and m<4 = 56 degrees, find the m<3.

1.5 Describe Angle Pair Relationships Write into our foldable Two adjacent angles are a linear pair if their non-common sides are opposite rays. The angles in a linear pair are always supplementary. Two angles are vertical angles if their sides form two pairs of opposite rays. And they are congruent.

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1.5 Describe Angle Pair Relationships Complementary angles and supplementary angles can be adjacent angles or nonadjacent angles. Adjacent angles are two angles that share a common vertex and side, but have no common interior points. (Write that into your foldable) 1.5 Describe Angle Pair Relationships

Look at your notes

Linear Pair Adjacent