Answer:
Sagittal plane
Step-by-step explanation:
The sagittal plane is a vertical plane that divides the body into right and left halves. When you use this plane to view the right radius and ulna simultaneously, you can assess their lengths in relation to each other because they both lie in the same plane of the body. This can be useful in medical and anatomical studies to evaluate symmetry and proportion between bones in the forearm, such as the radius and ulna.