Write a two-column proof, using the HL Congruence Theorem, to prove that the triangles are congruent.6. Given: ( angle A ) and ( angle B ) are right angles. ( overline{A B} cong overline{D C} )Prove: ( triangle A B C cong triangle D C B )7. Given: ( angle F G H ) and ( angle J H K ) are right angles. ( H ) is the midpoint of ( overline{G K} cdot overline{F H} cong overline{J K} ) Prove: ( triangle F G H cong triangle J H K )8. Given: ( overline{M P} ) is perpendicular to ( overline{Q R} ). ( N ) is the midpoint of ( overline{M P} cdot overline{Q P} cong overline{R M} ) Prove: ( triangle M N R cong triangle P N Q )