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Geometrical Figures

Geometrical Figures. Present to M.Veerasakdi By : Suthiti Phatanapherom Class 4/7 No. 34. Types of Quadrilaterals. parallelogram. square. rectangle. rhombus. Trapezoid(us). kite. Rectangle. A rectangle is a four-sided shape where every angle is a right angle (90°).

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Geometrical Figures

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  1. Geometrical Figures Present to M.Veerasakdi By : Suthiti Phatanapherom Class 4/7 No. 34

  2. Types of Quadrilaterals parallelogram square rectangle rhombus Trapezoid(us) kite

  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) b a a b

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

  7. 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.

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

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

  10. Can You Classify the Different Triangles in the Picture Below? E Classify the following triangles: AED, ABC, ACD, ACE A C B D

  11. The Classifications… • Triangle AED = Equilateral, Equiangular • Triangle ABC = Equilateral, Equiangular • Triangle ACD = Isosceles, Obtuse • Triangle ACE = Scalene, Right • So how did you do?

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