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Geometrical Figures

Geometrical Figures. Present to M.Veerasakdi. Suthimol Laohateerawat Class: 4 / 5 No: 17. December 2011. Types of Quadrilaterals . Rectangle. A rectangle is a four-sided shape where every angle is a right angle (90°). Also opposite sides are parallel and of equal length. Square .

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Geometrical Figures

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  1. Geometrical Figures Present to M.Veerasakdi Suthimol Laohateerawat Class: 4 / 5 No: 17 December 2011

  2. Types of Quadrilaterals

  3. Rectangle • A rectangle is a four-sided shape where every angle is a right angle (90°). • Also opposite sides are parallel and of equal length.

  4. Square • A square has equal sides and every angle is a right angle (90°) • Also opposite sides are parallel

  5. Parallelogram • Opposite sides are parallel and equal in length, and opposite angles are equal (angles "a" are the same, and angles "b" are the same)

  6. Rhombus • A rhombus is a four-sided shape where all sides have equal length. • Also opposite sides are parallel and opposite angles are equal.

  7. Parallelogram • Opposite sides are parallel and equal in length, and opposite angles are equal (angles "a" are the same, and angles "b" are the same). Click Geometrical Figures Online test

  8. Triangles There are several different types of triangles. You can classify a triangle by its sides and its angles. There are THREE different classifications for triangles based on their sides. There are FOUR different classifications for triangles based on their angles. OH… Triangles

  9. Classifying Triangles by Sides EQUILATERAL – 3 congruent sides ISOSCELES –at least two sides congruent ISOSCELES • SCALENE – no sides congruent

  10. Classifying Triangles by Angles EQUIANGULAR– all angles are congruent ACUTE– all angles are acute RIGHT– one right angle OBTUSE– one obtuse angle EQUIANGULAR ACUTE RIGHT OBTUSE

  11. Can You Classify the Different Triangles in the Picture Below? Classify the following triangles: AED, ABC, ACD, ACE

  12. The Classifications… Triangle AED = Equilateral, Equiangular Triangle ABC = Equilateral, Equiangular Triangle ACD = Isoceles, Obtuse Triangle ACE = Scalene, Right So how did you do? Follow : TRIANGLES ONLINE TEST

  13. Prepare by: Suthimol Laohateerawat Class: 4 / 5 No: 17 Thank You

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