1. Congruent Figures and Isosceles Triangles
Tuesday Oct
Congruent Figures and Isosceles Triangles

2. Warm-Up
4. Which congruence postulate or theorem proves the triangles are congruent:

3. HW Check Statements: 2, 3, 1, 4 Reasons: 2, 3, 4, 1
Given, Vertical angles, SAS, CPCTC
Given, Corr. Angles congruent, SAS, CPCTC
Given, Defn of Midpt, Reflexive, SSS, CPCTC, Defn of angle bisector.

4. Isosceles Triangles
s in which 2 or more sides are

5. If m<A=4x+2 and m<C=2x+20, Find x.

6. If m<B=x and m<A=2x+2, Find m<C.

7. Find the value of x in the regular polygon.

8. 5-1 Midsegments of Triangles

10. ***Midsegment is parallel to the base (side it does not touch)

11. Midsegment = ½ * base OR Base = 2*Midsegment

12. Ex:1. H, J, K are midpoints a. What is the midsegment of EG:
b. What is the midsegment of FE:
c. What is the midsegment of FG:

13. d.

14. Ex. 2 Find x:

15. Ex. 3 Find x:

16. Ex. 4

18. We know AE = EB

23. Homework
Complete the worksheet