The proof that TriangleMNG ≅ TriangleKJG is shown. Given: AngleN and AngleJ are right angles; NG ≅ JG Prove: TriangleMNG ≅ TriangleKJG Triangles M N G and J K G share point G. Angles M N G and G J K are right angles. Sides N G and G J are congruent. What is the missing reason in the proof? A 2-column table has 5 rows. Column 1 is labeled Statement with entries line segment N G is-congruent-to line segment J G, angle N and angle J are right angles, angle M G N is-congruent-to angle K G J, angle N is-congruent-to angle J, triangle M N G is-congruent-to triangle K J G. Column 2 is labeled reason with entries given, given, vertical angles are congruent, right angles are congruent, and question mark. the reflexive property ASA AAS the third angle theorem