2) Side-Side-Side
3)CPCTC
4)Isoceles triangle therom (ITT)
5)A. Yes, SSS-sim
6)Polygon
7)B
8)True
9)CD=20
10)80
11)Yes,? because the angles are 45, 45, 90.
12)<10
13)<11,<12,<4,<4
14)57
15)57
16)123
17)x=30
18)Yes, both pairs of opposite sides are congruent and triangles are congruent by SAS.
19)x=3, y=1
20)AB=1/2(EZ+PT)
13=1/2(4X-10=3X=8)
13=1/2(7X-2)
26=7X-2
28=7X
4=X
25.x=14.1
26.tan60=x/50
27.M<y=88:M<z=39,Y=70
28.True
29.320
30.8.9
31.23
32.False
33.Supplementary linear pair
34. a=75 b=105
35.a=50, b=130, c=70
36. Line CD
37. Line BD
38.x=11
39.x=12
40.6