MathCastle
GeometryMediumAngles

Angles · Medium problem

O(x²-22)°(9x)°

Two lines intersect at OO. One of the four angles measures (x2−22)∘(x^2 - 22)^\circ, and the angle vertical to it measures (9x)∘(9x)^\circ. Find xx (reject any value that gives a negative measure), the common measure of those vertical angles, and the measure of a neighboring angle.