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Geomatrical Figure - PowerPoint PPT Presentation

Geomatrical Figure. Present to M.Veerasakdi. By : Jaruphat Zhang Class P.4/6 No.43. Types of Quadrilaterals. Rectangle. A rectangle is a four-side shape where every angle is a right angle (90°). Also opposite sides are parallel and of equal length. Square.

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Geomatrical Figure

Present to

M.Veerasakdi

By : Jaruphat Zhang

Class P.4/6 No.43

A rectangle is a four-side shape where every angle is a right angle(90°).

Also opposite sides are parallel and of equal length.

A square has equal sides and every angle is right angle (90º)

Also opposite sides are parallel.

Opposite sides are parallel and equal in length, and opposite angles are equal

(angle “a” are the same, and angles “b” are the same)

A rhombus is a four-sided shape where all sides have equal length.

Also opposite side are parallel amd opposite angles are equal.

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.

EQUILATERAL - 3 congruent sides

ISOSCELES – at least two sides congruent

SCALENE – no sides congruent

• EQUIANGULAR – all angles are congruent

• ACUTE – all angles are acute

• RIGHT – one right angle

• OBTUSE – one obtuse angle

Can You Classify the Different Triangles in the Picture Below?

Classify the following triangles : AED, ABC, ACD, ACE

• Triangle AED = Equilateral, Equiangular

• Triangle ABC = Equilateral, Equiangular

• Triangle ACD = Isoceles, Obtuse

• Triangle ACE = Scalene, Right

• So how did you do?