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Polygons julia and olatz
 

Polygons julia and olatz

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    Polygons julia and olatz Polygons julia and olatz Presentation Transcript

    • POLYGONS Julia eta Olatz
    • 1. QUADRILATERALS
      • A four sided polygon.
      • All right angles
      • Area: base x height
      1.1. RECTANGLES
      • A four sided polygon
      • All right angles
      • Equal sides
      • Area: side x side
      1.2. SQUARE
      • A four sided polygon
      • Two pairs of parallel sides
      • Area: base x height
      1.3. PARALLELOGRAMS
      • Four sided polygon
      • Four sides of equal lenght
      • Area: (D x d) : 2
      1.4. RHOMBUS
      • Four sided polygon
      • Exactly one pair of parallel sides, they are called bases
      • Area: (B + b) x height
      • 2
      1.5. TRAPEZOID
    • 2. TRIANGLES
    • 2.1. Because of the lenght of the sides:
      • Three sides have the same lenght
      • The angles measure 60 degrees
      2.1.1. EQUILATERAL
      • Two sides have the same lenght, and the other has different
      2.1.2. ISOSCELES
      • The three sides have different lenght
      2.1.3. SCALENE
    • 2.2. Because of the angles
      • It has three acute angles (less than 90 degrees)
      2.2.1. ACUTE
      • One of the three angles measures more than 90 degrees
      2.2.2. OBTUSE
      • One angles is right (90 degrees)
      2.2.3. RIGHT
    • We also can find polygons around us:
    • Circle and octogon
    • Rectangles
    • Circle
    • Triangle
    • Rectangle