Describing Triangles

To decide who is correct, let's recall the definition of an obtuse triangle. $$\begin{array}{c}\text{A triangle is called obtuse}\\ \text{if it has one obtuse angle.}\end{array}$$ Since $90<122<180,$ the angle at $D$ is obtuse. Thus, by definition, this is an obtuse triangle. Marta-Jon is correct.

Ron-Jon observes correctly, that this triangle has two acute angles. But his conclusion based on this observation is not correct.