Mathematics, 18.06.2020 00:57 oopsorry

Quadrilateral EFGH is a parallelogram If the diagonals form four congruent triangles which statement must be true? OA EFGH is a thombus.
OB EFGH is a square
OC EFGH is a kite.
OD EFGH is a rectangle.

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Quadrilateral EFGH is a parallelogram If the diagonals form four congruent triangles which statement...