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]

## 25°

Q2: What is the measure of the missing angle?

[show answer]

## 48°

Q3: What is the measure of the missing angle?

[show answer]

## 97°