26

52

62

40

perpendicular bisector

angle bisector

median

altitude

perpendicular bisector

angle bisector

median

altitude

perpendicular bisector

angle bisector

median

altitude

11

22

44

not enough information

incenter-orthocenter

circumcenter-orthocenter

circumcenter-centroid

incenter-centroid

7, 2, 2

4, 1, 9

2, 3, 8

6, 8, 10

20, 7, 9

7, 8, 6

11, 13, 12

21, 19, 12

10, 17

11, 16

5, 27

4, 28

two angles are the same size and smaller than the third

B

A

C