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Some parallelograms are squares?
By definition, all squares are parallelograms. Not all parallelograms, however, are squares. All rectangles and rhombuses are also parallelograms.
Can a rhombus be a parallelogram?
All rhombuses are paralleleograms. Rhombuses are parallelograms in which all four sides are the same length (and the opposite angles are congruent). Squares are rhombuses in which all four angles are right.
Are some trapezoids rhombuses?
Yes. To be a trapezoid, a quadrilateral must have one pair of sides that are parallel. Since rhombuses are parallelograms, they are all also trapezoids, so a subset of trapezoids are rhombuses.
What is the proper name of a quadrilateral?
Quadrilaterals include trapeziums, trapezoids, parallelograms, rhombuses, rhomboids, rectangles, and squares.
What is a quadrilateral with 2 right angles?
A trapezoid can have 2 right angles. Parallelograms, rhombuses, rectangles, and squares can have 4.
