I'm not 100% sure but I think it's 53.1
ANSWER: No Solution
You didn’t mention how you needed it solved but solving this by substitution or solving this for a both give you the same answer. No solution.
Answer:
definition of perpendicular bisector
Step-by-step explanation:
You need to show the entire problem including the given.
I assume the given info states that
Segment MP is the perpendicular bisector of segment NO.
If that's the case, then the reason for lengths NP and OP being equal is
"definition of perpendicular bisector"