Quadrilaterals!
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Quadrilateral Tree
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A quadrilateral has four sides and four angles.
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A trapezoid is a quadrilateral that has one set of parallel sides.
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An isosceles trapezoid is a trapezoid with one pair of congruent, non-parallel sides.
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A kite is a quadrilateral with one pair of congruent angles and two pairs of adjacent congruent sides.
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A parallelogram is a quadrilateral whose opposite sides are parallel and congruent. It also has opposite angles that are congruent.
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A rectangle is a parallelogram with four right angles.
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A rhombus is a parallelogram with four congruent sides.
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A square can have two definitions.
A square can be a rectangle with four congruent sides.
A square can also be a rhombus with four right angles.
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