## Find Angles of a Triangle

## Work Time

# Angles of a Triangle

- What are the measures of ∠
*a*, ∠*b*, ∠*c*, and ∠*d*? - Explain how you determined each angle measure.

## Hint:

- What do you know about vertical angles?
- What do you know about supplementary angles?
- What do you know about the sum of the angles in a triangle?