1- prove that the diagonals of a rhombus bisect each other at right angels.
2- prove that diagonals of a kite or dart (possibly extended) intersect at right angels.
(Note: kite is a convex quadrilateral in which 2 pairs of adjacent sides are congruent dart is a non convex quadrilateral in which 2 pairs of adjacent sides are congruent)
Please see the attached file.© BrainMass Inc. brainmass.com March 4, 2021, 6:58 pm ad1c9bdddf
These are two proofs regarding diagonals of quadrilaterals.