In math, the topic of geometry is not one of my strengths. Unfortunately, it’s the topic we are tackling right now – proving an angle congruent to another angle.
I had never learned how to measure, add, subtract, or do any other equation with angles unless it involves a right angle (90 degree angle). The most I could do is add any three equations involving triangles (180 degree angle). But no, there is more to than just adding 180 or even 360 degrees.