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
.
![Toolbar Image](/images/ggb/toolbar/mode_complexnumber.png)
![Toolbar Image](/images/ggb/toolbar/mode_segment.png)
![Toolbar Image](/images/ggb/toolbar/mode_ray.png)
![Toolbar Image](/images/ggb/toolbar/mode_join.png)
![Toolbar Image](/images/ggb/toolbar/mode_angle.png)
Wait for the class, please. :)
Two angles are COMPLEMENTARY if the sum their measures is 90˚and SUPPLEMENTARYif 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.
![Image](https://stage.geogebra.org/resource/fhprmpq5/zi17H3cM1pKEQJ1L/material-fhprmpq5.png)
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.