Linear Pair Exploration

Becky Snow, Joy
Definition: A linear pair is a set of two adjacent angles that form a line. Angles and are linear pair shown below. Interact with the following applet for a few minutes, and then answer the questions below.

Based upon your observations, what conclusions can you make about linear pairs of angles?

Suppose the measure of the green angle was 25 degrees. What would the measure of its linear pair be?