1. Warm Up
Solve for x.
x x + 1 = 90
4x + 2 = 90
4x = 88
x = 22

2. Questions over HW?

3. Skills Check

4. Parallel Lines, Transversals

5. Parallel Lines & Transversals
Geogebra Link

6. Corresponding Angles
Same location but at different intersections (only travel on the transversal)
Are congruent
Equation:
angle = angle

7. Alternate Interior Angles
Opposite sides of the transversal & inside the parallels
Are congruent
Equation:
angle = angle

8. Consecutive Interior Angles
Same side of the transversal & inside the parallels
Are supplementary
Equation:
angle + angle = 180

9. Alternate Exterior Angles
Opposite sides of the transversal & outside the parallels
Are congruent
Equation:
angle = angle

10. Which path?
Same path:
Angles are congruent. 11 10 13 12 15 14 17 16

11. Angles are supplementary.
Which path?
Same path:
Angles are congruent. 11 10 13 12 15 14 17
Not on the same path:
Angles are supplementary. 16

12. Practice #1
Find all the missing angles if Angle 1 = 70˚

13. Practice #2
Find x and Angle 2
x = 15 and Angle 2 = 50˚

14. Practice #3
Find x and y
x = 6 and y = 20

15. Application

16. Bonus
Find x
x = 48

17. Bonus
Find x
x = 19

18. Bonus
Find x
x = 64