Section 1.6 Pairs of Angles 1/18
Dec 24, 2015
Adjacent Angles
Adjacent Angles are two angles that share a common vertex & side (ray), but have NO common interior points.(they have the same vertex, but don’t overlap)
1 2
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Vertical (Opposite) Angles
1 3
2
4
Vertical Angles are two angles that share a common vertex & whose sides form two pairs of opposite rays.
4/18
Linear Pair
A Linear Pair of angles are two adjacent angles whose non-common sides are opposite rays.
2 1
1 2 180m m
5/18
Discuss Angles
Vertical angles?Adjacent angles?Linear pair?Adjacent angles not a linear pair?
1
2
435
6/18
Complementary Angles
Complementary angles are two angles whose sum is 90. The two angles are called complements.
12
35o
A
55o
B
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Supplementary Angles
Supplementary angles are two angles whose sum is 180. These angles are called supplements.
130o
50oX Y
12
13/18
More Questions
Given that angle G is a supplement of angle H and the measure of angle G is 82°, find the measure of angle H.
16/18