TRIANGLES

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# TRIANGLES - PowerPoint PPT Presentation

TRIANGLES. CLASSIFICATIONS, ANGLES AND MORE!!. Free powerpoints at http://www.worldofteaching.com. Different Types of Triangles. There are several different types of triangles. You can classify a triangle by its sides and its angles.

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## PowerPoint Slideshow about 'TRIANGLES' - chelsa

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### TRIANGLES

CLASSIFICATIONS, ANGLES AND MORE!!

Free powerpoints at http://www.worldofteaching.com

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.
Classifying Triangles by Their Sides
• EQUILATERAL – 3 congruent sides
• ISOSCELES – at least two sides

congruent

• SCALENE – no sides congruent

EQUILATERAL

ISOSCELES

SCALENE

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

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

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