Please Help! Geometry

Question

The following is an incorrect flowchart proving that point L, lying on  which is a perpendicular bisector of , is equidistant from points J and K:

What is the error in this flowchart?

A. An arrow is missing between ∠LNK = 90° and ∠LNJ = 90° and ∠LNK ≅ ∠LNJ.

B. JL and KL are equal in length, according to the definition of a midpoint. 

C. An arrow is missing between the given statement and ∠LNK ≅ ∠LNJ. 

D. Point L is equidistant from points J and N, not J and K.

Answer 1

I will supply the proof; you figure what is wrong with the proof given in the problem.

Draw a figure!!!!

Construct the line segments LK and LJ.

In triangles LMJ and LMK:

LM is common

JM = LM because LM is the bisector of JK (you might use congruent instead of equal)

The 2 triangles are right triangles because LM is the perpendicular bisector of JK

The 2 triangles are congruent by SAS

LJ=LK because they are corresponding parts of congruent triangles (again you might use the word congruent)