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User: Which parallelogram has four right angles and four congruent sides? A. square B. rectangle C. trapezoid D. rhombus Weegy: The true statement is: A square is a rhombus. kyler07|Points 151|.
*Parallelogram I have: - 2 sets of parallel sides - 2 sets of congruent sides-opposite angles congruent-consecutive angles supplementary-diagonals bisect each other-diagonals form 2 congruent triangles. Using this definition, the remaining properties regarding a parallelogram can be proven true and become theorems.