
Kenneth S. answered 02/19/18
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Expert Help in Algebra/Trig/(Pre)calculus to Guarantee Success in 2018
usually these are listed in textbook.
RHOMBUS: equilateral parallelogram; diagonals bisect each other and are mutually perpendicular.
SQUARE: rhombus which is equiangular.
RECTANGLE: parallelogram which is equiangular; diagonals bisect each other.