Question

is δprs a right triangle? yes zombies no way to tell no

Explanation:

Step1: Identify right - angle in triangle

We see that $\angle{PRS}$ is marked as a right - angle (the square symbol at $\angle{PRS}$).

Step2: Recall right - triangle definition

A right - triangle is a triangle with one right - angle. Since $\triangle{PRS}$ has a right - angle at $\angle{PRS}$, it is a right - triangle.

Answer:

A. Yes