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Quadrilaterals (definition and classification)

on Feb 27, 2014

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Quadrilaterals (definition and classification)Presentation Transcript

• by: Adrian M. Mataac Bayuin NHS (Socorro, Oriental Mindoro)
• QUADRILATERALS  Is a polygon consists of four segments joining at their endpoints  PROPERTIES:  with four sides  with four angles  with four vertices  With one pair of diagonals  The measure of all the interior angles is 360 degees.
• QUADRILATERALS  Regular quadrilateral Convex quadrilateral Square Concave quadrilateral
• QuadrilateraI is denoted by its vertices, written consecutively in clockwise or counterclockwise direction S consecutive A opposite vertices S and A angles M E SAME EMAS A and E LS and LA LA and LE sides SA and AM SA and EM
• Quadrilaterals Quadrilateral (Trapezium) Parallelogram Trapezoid Rectangle Rhombus Isosceles Trapezoid Square Kite
• Types of Quadrilaterals  Parallelogram: Quadrilateral with opposite sides that are parallel and of equal length and opposite angles are equal Indicates equal sides
• Types of Quadrilaterals  Rectangle: Quadrilateral with two pairs of equal sides and four right angles (90 degrees) Indicates equal sides Box indicates 900 angle
• Types of Quadrilaterals  Rhombus: Parallelogram with four equal sides and opposite angles equal Indicates equal sides
• Types of Quadrilaterals  Square: Quadrilateral with four equal sides and four right angles (90 degrees) Indicates equal sides Box indicates 900 angle
• Types of Quadrilaterals  Trapezoid: A quadrilateral with exactly one pair of parallel sides Parallel sides never meet.
• Trapezoid  Isosceles Trapezoid: Trapezoid with nonparallel sides congruent
• Kite  Kite: A quadrilateral with two pairs of adjacent sides congruent and no opposite sides congruent