Classifying Triangles-4th

Classifying Triangles-4th

I can identify angles based on their sides and angles.

Classifying by Sides

We can classify triangles by the number of equivalent sides.

Real World Example

Equilateral Triangle

Real World Example

Isosceles Triangle

Real World Example

Scalene Triangle

Multiple Choice

What type of triangle is this?

• Equilateral

• Isosceles

• Scalene

Multiple Choice

What type of triangle is this?

• Isosceles

• Scalene

• Equilateral

Multiple Choice

What type of triangle is this?

• scalene
• acute
• equilateral
• isosceles

Classifying by Angles

We can also classify triangles by the types of angles they have.

Real World Example

Acute Triangle

Real World Example

Right Triangle

Real World Example

Obtuse Triangle

Multiple Choice

Classify this triangle.

• acute

• right

• obtuse

Multiple Choice

Classify this triangle.

• obtuse

• right

• acute

Multiple Choice

Classify this triangle

• right

• obtuse

• acute

Let's Practice

Now we will identify triangles by both their sides and angles.

Multiple Choice

Which type of triangle is pictured?

• A

• B

• C

• D

Multiple Choice

Identify the triangle by its sides

• Isosceles Acute

• Scalene Obtuse

• Isosceles Obtuse

• Scalene Acute

Multiple Choice

Identify the triangle by its sides and angles

• Equilateral

• Equilateral Obtuse

• Equilateral Acute

• Isosceles Acute

Multiple Choice

Identify the triangle by its sides and angles.

• Equilateral Obtuse

• Isosceles Obtuse

• Isosceles

• Acute Scalene