An airplane flies at an altitude of 14,690 ft. while a submarine is submerged at a depth of 521 ft. below the surface of the ocean. what is the difference between these two equations?

Nina has prepared the following two-column proof below. she is given that ∠oln ≅ ∠lno and she is trying to prove that ol ≅ on. triangle oln, where angle oln is congruent to angle lno nina made two errors in the proof. identify and correct the errors.