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Classifying Triangles
Geometry
Two Ways to
Classify Triangles

By Their Sides

By Their Angles
Geometry
Classifying Triangles
By Their Sides
Geometry

Scalene

Isosceles
Scalene Triangles

No sides are the same length
Geometry
Isosceles Triangles
At least two sides
are the same length

Geometry
Classifying Triangles
By Their Angles
Geometry

Acute

Right

Obtuse

Acute – leass than 90 degrees

Right – 90 degrees

Obtuse – more than 90 degrees
Geometry
Acute Triangles

Acute triangles have
three acute angles.
Geometry
Right Triangles

Right triangles have
one right angle.
Geometry
Obtuse Triangles

Obtuse triangles have
one obtuse angle.
Geometry
Classify this triangle.
Right Scalene
Geometry
Classify this triangle.
Obtuse Isosceles
Geometry
Classify this triangle.
Acute Scalene
Geometry
Classify this triangle.
Acute Isosceles
Geometry
Classify this triangle.
Obtuse Scalene
Geometry
Classify this triangle.
Right Isosceles
Geometry
The End
Geometry