Use any method to prove that AABC with coordinates A(-2,1), B(4,3), C(-1,-2) is a
right triangle. Show all your work and explain
your answer on your work paper.
.
THIS QUESTION MUST BE ANSWERED
ON YOUR UNIT 2 TEST WORK PAPER.
4 3
B
N
A
-4 -3 -2
1
23
4 x

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 step statement reason 1 ∠oln ≅ ∠lno given 2 draw oe as a perpendicular bisector to ln by construction 3 ∠leo ≅ ∠neo transitive property of equality 4 m∠leo = 90° definition of a perpendicular bisector 5 m∠neo = 90° definition of a perpendicular bisector 6 le ≅ en definition of a perpendicular bisector 7 δole ≅ δone side-angle-side (sas) postulate 8 ol ≅ on cpctc nina made two errors in the proof. identify and correct the errors.