If Z is the circumcenter what is the value of ZU ? 19
U
15
W
21
Y 34
Someone please help me with this.

What are “like terms”? why can we only add like terms?

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

Given: klmn is a parallelogram m? n=3m? k, lf ? kn , ld ? nm kf=2 cm, fn=4 cm find: lf, ld