Thread: Calculate XZ in the diagram shown

picture:

http://i121.photobucket.com/albums/o...oryz/002-8.jpg

answers:
a.) 72
b.) 63
c.) 56
d.) 49

Because it's got a circle inscribed in it, you can get the results:

XT = XS
YS = YU
UZ = 79 - YU
TZ = UZ
XZ = XT + TZ

Take it from there.