4.2_10­14­14.notebook
October 14, 2014
4.2 ­ Angle Measures in a Triangle
Triangle Sum Theorem:
All of the angles in a triangle add up to ________
Ex. 1
Ex. 2
Practice:
3. Find the value of x.
1
4.2_10­14­14.notebook
October 14, 2014
Exterior Angle Theorem
Example:
Practice:
116o
4
Due Monday:
4.2 pg.182­184 #2, 4, 6­14, 18­20, 1­3(pg. 184)
2