2.5 Linear Pair and Vertical Angles Inv. 1 and 2

Linear Pair Investigation 1. Interact with the applet for a minute. Then answer the questions below.
Answer the question below based on your observations in the applet above.
What is the sum of the measure of angles PRS and QRS?[br][br][br]
Complete the statement.
If two angles form a linear pair, then the measure of the angles _________________________ .
Investigation 2: Vertical Angles
Definition: [color=#b20ea8]Vertical Angles[/color] are angles whose sides form 2 pairs of opposite rays. [br][br]When 2 lines intersect, 2 pairs of vertical angles are formed. [color=#b20ea8]One pair of vertical angles is shown below. [/color] [br][color=#888](Click the other checkbox on the right to display the other pair of vertical angles.) [/color][br][br]
Vertical Angles: Interact with the following applet for a few minutes, then answer the questions that follow.
What do you notice about vertical angles? How do their measures compare?
Complete the statement.
If two angles are vertical angles, then _____________________________________.
Close
– Tim Brzezinski, Mr. Cairns

Information: 2.5 Linear Pair and Vertical Angles Inv. 1 and 2