What seems to always be true
about the height of the triangle?

The height of the triangle is always the  measurement of a line (often shown as dashes) that is perpendicular to the base and extends to the opposite angle at the top of the triangle.

If it is a right triangle, and the right angle is at the bottom, the side extending up from the right angle will be the height. But this is not always the case.

I think C. because that will be easier and less chaotic