1. 4/13

2. Do Now 4/13 The m∠3 is 72 degrees. What is the m<2?
If you could only listen to one song for the rest of your life what would it be?

3. Good Things!
Quiz on Monday over transversals and vertical angles

4. Agenda Do Now Good Things! Review: Vertical Angles Notes
Triangle Sum Theorem
Exterior Angle Theorem

5. Vertical Angles
If m∠2 = 7x - 9 and m∠1 = 8x – 6, find m∠4

6. Vertical Angles
If m<1 = 9x - 10 and m<3 = 3x +6, what is the m<2?

7. Your Turn!

8. Triangle Sum Theorem
The measure of the interior angles of a triangle is always 180 degrees

9. Triangle Sum Theorem Practice

10. Triangle Sum Theorem Practice
Solve for angle A. A

11. Your Turn!
Solve for x
Solve for angle A.

12. Triangle Sum Theorem + Vertical Angles
First, list everything we know to be true.

13. Exterior Angle Theorem
The exterior angle is the sum of the remote interior angles

14. Exterior Angle Theorem Practice
Find m<U

15. Exterior Angle Theorem Practice
Solve for x

16. Your Turn!
Solve for x
Solve for x

17. Recap: The SUM of all the angles in a triangle is 180
The EXTERIOR angle is equal to the sum of the remote interior angles (the two that are NOT touching it)

18. Partner Practice Worksheet is on my website Geremia-math-2.weebly.com
You must write your answers and show your work – due by end of class
use answer document
Solution station at the front
Additional Quiz Practice: IXL.com, D.4 Transversals of parallel lines: find angle measures

19. Launch