Linear Pair of Angles

Topic:
Angles
<ADC and <BDC are a linear pair of angles.
Move point C to change the angle values. 1. What do you notice about the location of the linear angles? 2. What do you observe about the angle measures of the linear angles? 3. A linear pair of angles has two important characteristics. Based on your answers to questions 1 and 2, can you identify these characteristics?