Gideon has prepared the following two-column proof below. he is given that ∠oln ≅ ∠lno and he is trying to prove that δole ≅ δone.

triangle oln, where angle oln is congruent to angle lno

step statement reason
1 ∠oln ≅ ∠lno given
2 draw oe as a perpendicular bisector to ln by construction
3 m∠leo = 90° definition of a perpendicular bisector
4 m∠neo = 90° definition of a perpendicular bisector
5 le ≅ en definition of a perpendicular bisector
6 ol ≅ on cpctc
7 ∠leo ≅ ∠neo substitution property of equality
8 δole ≅ δone angle-side-angle (asa) postulate

gideon made two errors in the proof. identify and correct the errors.