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POLYGONS

POLYGONS . CONVEX POLYGON. CONCAVE POLYGON. All of its angles are smaller than 180º. At least one of its angles is bigger than 180º. POLYGONS . Triangle. Cuadrilateral. Pentagon. Hexagon. …. 6 sides - 6 vertices. 5 sides - 5 vertices. 4 sides - 4 vertices.

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POLYGONS

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  1. POLYGONS CONVEX POLYGON CONCAVE POLYGON All of itsangles are smallerthan 180º At leastone of itsanglesisbiggerthan 180º

  2. POLYGONS • Triangle • Cuadrilateral • Pentagon • Hexagon • … 6 sides- 6 vertices 5 sides- 5 vertices 4 sides- 4 vertices 3 sides- 3 vertices

  3. TRIANGLES Clasificationby relative lengths of its sides • equilateral • isosceles • escalene 3 differentsides 3 differentangles 2 equalsides 2 equalangles 3 equalsides 3 equalangles

  4. TRIANGLES Clasificationbyinternalangles • acutangle • right • obtusangle 3 anglessmallerthan90º One of itsanglesisbiggerthan 90º One of itsanglesis 90º

  5. TRIANGLES ELEMENTS OF A TRIANGLE Bisector angles Itisthe centre of theinscribedcircumference INCENTER

  6. TRIANGLES ELEMENTS OF A TRIANGLE Perpendicular bisector toeachside Itisthe centre of thecircumferencethatpassesthroughallthevertices CIRCUMCENTRE

  7. TRIANGLES ELEMENTS OF A TRIANGLE Medians (Straitghlinesthat links a verticetothemiddlepoint of theoppositeside Itisthegravity centre INCENTRE

  8. TRIANGLES ELEMENTS OF A TRIANGLE Altitudes (Perpendularlinesfrom a vertextotheoppositeside) ORTHOCENTRE

  9. CUADRILATERALS SQUARE • Parallel and equallength of thesides • Alltheanglesmake 90º degrees

  10. CUADRILATERALS RECTANGLE • Parallelsides and equaltwobytwo • 90º degreesangles

  11. CUADRILATERALS ROMBHUS • Parallelsidestwobytwo and equallenght • Equalanglestwobytwo • Perpendicular diagonals.

  12. CUADRILATERALS RHOMBOID • Parallel and equalsidestwobytwo • Equalanglestwobytwo

  13. SMALLER BASE BIGGER BASE CUADRILATERALS TRAPEZIUM • It has twoparallelsidescalled bases

  14. CUADRILATERALS TIPES OF TRAPEZIUM: Right (twoangles of 90º degrees) Isosceles (non parallelsides of equallenght)

  15. CUADRILATERALS TRAPEZOID • 4 differentsides • 4 differentangles

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