Jon started with a diagram like the on below and drew a three-dimensional figure by rotating the circle 360 degrees about line m.

nadia started with a diagram like the one shown below and drew a three-dimensional figure by rotating the right triangle abc 360 degrees about line n.

(see photo provided.)

i need:

1. the three dimensional figure created by each person

i think that jon made a torus and nadia made a cone

2. the planes of symmetry of the three-dimensional figures created by each person. nadia says her figure has an infinite number of planes of symmetry, and jon says his figure has an infinite number plus one, and convinces nadia. how might jon have explained this?

the other explanations online for part 2 of this question are incorrect, or make no sense to me.