Classifying Triangles

Classify the triangle.

• Right isosceles triangle.

• Right equilateral triangle.

• Acute isosceles triangle.

• Acute scalene triangle.

Classify the triangle.

• Right isosceles triangle.

• Acute scalene triangle.

• Acute isosceles triangle.

• Acute equilateral triangle.

Classify the triangle.

• Acute equilateral triangle.

• Acute scalene triangle.

• Obtuse isosceles triangle.

• Right scalene triangle.

Classify the triangle.

• Right isosceles triangle.

• Obtuse isosceles triangle.

• Obtuse scalene triangle.

• Acute scalene triangle.

Label the three triangles

a

b

c

Equilateral Triangle

Scalene Triangle

Isosceles Triangle

Classify this triangle.

b

right scalene

obtuse scalene

right isosceles

acute equilateral

acute isosceles

LOOKING AT ANGLES: WHAT TYPE OF TRIANGLE IS THIS? HINT: ONE ANGLE = 90 DEGREES

• ACUTE

• OBTUSE

• RIGHT

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

• right triangle

• acute triangle

• obtuse triangle

Side Classification: ​ (a)  

Angle Classification: ​ (b)  

• Isosceles

• Acute

• Right

• Obtuse

• Equilateral

• Scalene

Side Classification: ​ (a)  

Angle Classification: ​ (b)  

• isosceles

• right

• scalene

• obtuse

• equilateral

• acute