Answer:
Circumcenter
Step-by-step explanation:
The center that is created by intersection of the three perpendicular bisectors of your triangle sides.
50 - x² = 0
x² = 50
or
you could only get to “4x^6+4x^5-331776=0” that would be the simpliest form
36
5x-6+3x+90=180
8x+84=180
8x=96
x=12
Plug it in to 3x
3x12=36
