Question

HELP PLS.
What is the measure of XY? *APEX QUESTION*
/ picture included.

Answer 1

<UVZ ≠ 90 unless V is the center of the circle. There is no reason to assume that.

Answer 2

Study the attached theorem and then apply it to the given problem.

Answer 3

Recall that the sum of the arc measures of a circle is 360.

Answer 4

OH, you're right, i messed up, deleting comment D: