Given: 22 and 24 are vertical angles. Prove: 2224
Statements Reasons
m22 + m23 = 180
m23 + m24 = 180
22 and 24 are vert, angles
22 and 23 are a linear pair
23 and 24 are a linear pair
lines m and n intersect at P
m
1
Statements
Reasons
2
4
P Р
72
3
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intro

Graph a triangle (xyz) and reflect it over the line y=x to create triangle x’y’z’. describe the transformation using words. draw a line segment from point x to the reflecting line, and then draw a line segment from point x’ to the reflecting line. what do you notice about the two line segments you drew? do you think you would see the same characteristics if you drew the line segment connecting y with the reflecting line and then y’ with the reflecting line? how do you know?