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Quadrilaterals

Quadrilaterals. Quadrilaterals. “Quad” means four. Why would all of these shapes be called “ quad rilaterals”?. Each shape has four sides. trapezoid. square. rhombus. parallelogram. rectangle. Quadrilateral: A polygon with 4 straight sides and four corners (vertices). Square.

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Quadrilaterals

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  1. Quadrilaterals

  2. Quadrilaterals “Quad” means four. Why would all of these shapes be called “quadrilaterals”? Each shape has four sides. trapezoid square rhombus parallelogram rectangle

  3. Quadrilateral: A polygon with 4 straight sides and four corners (vertices).

  4. Square • A square has four congruent (equal length) sides. • 4 right angles (perfect corners). • 4 lines of symmetry

  5. Rhombus • All 4 sides are congruent. • Opposite angles are congruent. • 2 lines of symmetry These angles are congruent These angles are congruent

  6. Square and Rhombus • How are squares and rhombuses the same? How are they different? Both

  7. Trapezoid • A trapezoid has 4 sides and 4 angles. • Exactly two sides are parallel. • DOESN’T HAVE TO HAVE a line of symmetry (but it can). These sides are not parallel These sides are parallel

  8. Rectangle • Opposite sides are congruent. • Two pairs of parallel sides. • 4 right angles. • 2 Lines of Symmetry These sides are parallel These sides are parallel

  9. Parallelogram • Opposite sides are congruent. • Opposite angles are congruent. • 2 pairs of parallel sides • DOESN’T HAVE TO HAVE a line of symmetry These sides are parallel These sides are parallel These angles are congruent These angles are congruent

  10. Parallelogram and Rectangle How are parallelograms and rectangles the same? How are they different? Both

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