Adjacent, Supplementary, Complementary And Vertical Angles 
Lesson 1 
Problem: 
Name pairs of the specified angles. 


Solution
Step 1: 
Adjacent angles are angles that have a common ray coming out of the
vertex going between two other rays. Angle
AHF = FHG 
Solution Step 2: 
Vertical
Angles a pair of angles are said to be vertical
if the angles share the same vertex
and are
bounded by the same pair of lines, but are opposite to each other. Such
angles are congruent and thus have equal measure.
Angle SHD = FHG 
Solution Step 3: 
Supplementary Angles a pair of angles is supplementary if their measurements add up to 180 degrees. Angle SHF = FHG 
Solution Step 4: 
Complementary Angles a pair of angles is complementary if the sum of their angles is 90°. Angle AHF = FHG 
Complete 

Try two practice
problems:

Name pairs of the specified angles.

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