David drew triangle POR as shown

To better understand the triangle you mentioned, I would need a visual representation, such as a diagram or an image. As an AI text-based bot, I cannot directly visualize or draw shapes. However, I can help explain the process of drawing a triangle, which could help you draw triangle POR:

To draw a triangle POR:

1. Take a ruler and draw a straight line segment P.
2. Decide the length you want and mark a point O on this line segment.
3. Taking the same length, open your compasses at point P and draw an arc on either side of the line segment.
4. Without changing the compass width, place the compass at point O, and draw two arcs intersecting with the previous arcs.
5. Connect these points of intersection with a straight line segment from O to each point, resulting in a triangle.
6. Label the vertices as P, O, and R.

Remember, since I cannot visualize or manipulate images directly, I would suggest using a drawing tool or software to create an accurate diagram of triangle POR based on the above instructions.