Classifying Triangles Math 7 Ms. Conway Math 7 Ms. Conway

Two Ways to Classify Triangles  By their Sides  By their Angles  By their Sides  By their Angles

Classifying Triangles by their Sides  Scalene Triangles  Isosceles Triangles  Equilateral Triangles  Scalene Triangles  Isosceles Triangles  Equilateral Triangles

Scalene Triangles  No sides are the same length

Isosceles Triangles  Two sides are the same length

Equilateral Triangles  All 3 sides are the same length

Classifying Triangles by their Angles  Acute Triangles  Right Triangles  Obtuse Triangles  Acute Triangles  Right Triangles  Obtuse Triangles

Acute Triangle  Three acute angles (0 o < angle < 90 o )

Right Triangle  One right angle (90 o )

Obtuse Triangles  One obtuse angle (90 o < angle < 180 o )

Classify this Triangle based on its sides and angles  Right Scalene

Classify this Triangle based on its sides and angles  Obtuse Isosceles

Classify this Triangle based on its sides and angles  Right Isosceles

Classify this Triangle baesd on its sides and angles  Acute Scalene

Classify this Triangle based on its sides and angles  Obtuse Scalene

Classify this Triangle based on its sides and angles  Acute Isosceles

Challenge!!! Classify this Triangle  Equilateral

Great Job!