Angles on a line

Take a look at these angles. Notice that they form a straight angle. Find the missing angle.

 

 

 

Duane Habecker, 03/14/2010, Created with GeoGebra

 

Self-check


Q1: What is the measure of the missing angle?

[show answer]


Q2: What is the measure of the missing angle?

[show answer]


Q3: What is the measure of the missing angle?

[show answer]


 

 

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