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**CLASSIFICATIONS, ANGLES AND MORE!!**

TRIANGLES CLASSIFICATIONS, ANGLES AND MORE!! Free powerpoints at

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**Different Types of 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.

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**Classifying Triangles by Their Sides**

EQUILATERAL – 3 congruent sides ISOSCELES – at least two sides congruent SCALENE – no sides congruent EQUILATERAL ISOSCELES SCALENE

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**Classifying Triangles by Their Angles**

EQUIANGULAR – all angles are congruent ACUTE – all angles are acute RIGHT – one right angle OBTUSE – one obtuse angle EQUIANGULAR ACUTE RIGHT OBTUSE

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**Can You Classify the Different Triangles in the Picture Below?**

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

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**The Classifications… Triangle AED = Equilateral, Equiangular**

Triangle ABC = Equilateral, Equiangular Triangle ACD = Isoceles, Obtuse Triangle ACE = Scalene, Right So how did you do?

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Let’s revise some angles Angles What names of angles do you know? ACUTE RIGHT ANGLE OBTUSEREFLEX Less than 90 o Exactly 90 o Between 90 o and 180 o Between.

Let’s revise some angles Angles What names of angles do you know? ACUTE RIGHT ANGLE OBTUSEREFLEX Less than 90 o Exactly 90 o Between 90 o and 180 o Between.

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