Complementary Angles - find the missing angle

Play with this applet to discover how to find the missing complementary angle. Scroll to the bottom of this page if you need help.

 

 

Duane Habecker, Created with GeoGebra

 

 


HELP

Since complementary angles have a sum of 90°, you just need to subtract the given angle from 90. The difference is the missing angle.


 

 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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