# Geometry Notes Section 1.5: Angle Relationships

Please try #1 while you wait for class to begin. :)

#1)
a) Move and review the point, segment, ray, line, and angle.
b) Change the colors using the black square that appears when you select the item.
c) Draw a new point , segment , ray , line , and angle .

Wait for the class, please. :)

Two angles are

**COMPLEMENTARY**if the sum their measures is 90˚and**SUPPLEMENTARY**if the sum is 180˚.#2) 1. Complementary, supplementary, or neither? a) 70˚ and 110˚ b) 23˚ and 57˚ c) 17˚ and 73˚

Try #3 on your own:

#3) Find the COMPLEMENT and the SUPPLEMENT for: a) 20˚

b) x˚

c) (90-m)˚

d) (180-t)˚

**Adjacent angles**are two angles that share a common vertex and a common side, but have no common interior points.Do #4 and #5 on your PRINTED NOTES.

Complementary and supplementary angle pairs can be adjacent or nonadjacent.

Do #6 and #7 on your PRINTED NOTES.
We will do # 8 on your PRINTED NOTES together.

#9 below, and then on PRINTED NOTES

## Click the check boxes one by one.

#10 together on PRINTED NOTES.