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]

## 24°

Q2: What is the measure of the missing angle?

[show answer]

## 40°

Q3: What is the measure of the missing angle?

[show answer]

## 68°