Geometry Lesson

ray BC

ray AB

ray CA

ray CB

3

4

5

6

6

4

70

40

11

12

8

(1, 3)

(3.5, -.5)

(-.5, 3.5)

(6, -.5)

$$d\ =\ \sqrt{\left(y_{1\ }-\ y_2\right)^2\ -\left(x_{2\ }-\ x_1\right)^2}\$$

$$d\ =\ \sqrt{\left(x_{2\ }-\ x_1\right)^2\ +\ \left(y_{2_{\ }}-\ y_1\ \right)2}$$

$$d\ =\ \sqrt{\left(y_{1\ }-\ y\ _2\right)^2\ +\ \left(x_{2\ }-\ x_1\right)}^2$$

d = $$\sqrt{\left(x\right)^2-\ \left(y\right)^2}$$

$$15\degree$$  

$$35\degree$$  

$$5\degree$$  

$$20\degree$$  

5

2

6

13

3 angles that add up to 180 degrees

2 angles that add up to 180 degrees

2 angles that are congruent

2 angles that add up 90 degrees