Question 150904
A. True. The definition of a rectangle is a quadrilateral "with four right angles" source: http://mathworld.wolfram.com/Rectangle.html


B. False. A square <font size=4><b>must</b></font> must have 4 right angles and 4 equal sides. Source: http://mathworld.wolfram.com/Square.html


C. False. Trapezoids only have one set of parallel sides. Source: http://mathworld.wolfram.com/Trapezoid.html


D. False. A rhombus must also have equal sides. Source: http://mathworld.wolfram.com/Rhombus.html



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Summary:


So the only part that is true is A