Duncan has cups of sand. he divides the sand equally into 4 containers.
he uses all the sand in 1 container to make pieces of sand art.
it takes cups of sand to complete each piece of sand art.

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.