Classifying Triangles

Use the angles to classify the triangles

Use the sides to identify the triangle

0 sides the same - scalene triangle

2 sides the same - isosceles triangle

3 sides the same - equilateral triangle

Use the angles to classify the triangles

Use the angles to classify the triangles

Classify the triangle by its angle measures ​ (a)   and side lengths ​ (b)  

• right

• Scalene

• obtuse

• acute

• equilateral

• isosceles

• equiangular

Which would be the best classification for the triangle shown?

• right isosceles

• obtuse scalene

• obtuse isosceles

• right scalene

Side Classification: ​ (a)  

Angle Classification: ​ (b)  

• Isosceles

• Acute

• Right

• Obtuse

• Equilateral

• Scalene

Classify the following triangle​ .​ ​ ​ ​ ​ ​ ​ ​ ​ ​​ ​ (a)   ​ (b)   ​ (c)   ​

• right triangle

• acute triangle

• obtuse triangle

Side Classification: ​ (a)  

Angle Classification: ​ (b)  

• isosceles

• right

• scalene

• obtuse

• equilateral

• acute

Classify this triangle.

b

right scalene

obtuse scalene

acute isosceles

right isosceles

acute equilateral