please help with these problems

Have you thought about these questions? 

 

The answers are right on the page. Bisectors are the main thing you need to understand to get the answer right (as, these questions are not that hard) so here is a place you can learn from: https://www.mathopenref.com/bisector.html

Perpendicular bisector in a triangle is a line segment that bisects a side of a triangle at a 90º angle.

 

1)     ZJ = 65                 ZG = ZH = ZJ

 

2)     HJ = 2*63 = 126

 

3)      XC = 8

 

 4)     BE = 10