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Triangle Types
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Slide 1

TRIANGLES

TRIANGLES

CLASSIFICATIONS, ANGLES AND MORE!!

Slide 2

Different Types of Triangles

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.

Slide 3

Classifying Triangles by Their Sides

Classifying Triangles by Their Sides

EQUILATERAL 3 congruent sides

ISOSCELES at least two sides

congruent

SCALENE no sides congruent

EQUILATERAL

ISOSCELES

SCALENE

Slide 4

Classifying Triangles by Their Angles

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

Slide 5

Can You Classify the Different Triangles in the Picture Below?

Can You Classify the Different Triangles in the Picture Below?

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

Slide 6

The Classifications

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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