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Is every rectangle a square?
No indeed, but every square is a rectangle. Rectangles have four sides like squares, but they don't have all sides congruent to one another. All rectangles do not possess the same symmetrical lines as squares.
Why is a parallelogram is not necessarily a rhombus?
The definition of a parallelogram is that it has four sides, the opposite sides are congruent and parallel, and opposite angles are congruent. This includes rectangles, squares, rhombuses, etc.The definition of a rhombus states that it is a parallelogram, but more specifically that all sides are congruent.So a rhombus is a parallelogram, but not all parallelograms are rhombuses.
What is a four-sided polygon with opposite sides parallel and congruent and four right angles?
A rectangle is a quadrilateral with opposite sides parallel and congruent and four right angles. If all four sides are congruent, it is a square.
Which quadrilaterals have both pairs of opposite sides that are congruent?
A parallelogram if the two pairs are mutually congruent but all four sides are not. A rhombus if all four are.
What quadrilateral has all angles congruent?
The quadrilaterals with all angles congruent are rectangles and squares. They are the only quadrilaterals in which all four angles are right angles.
