classifying triangles

Triangle C is which type of triangle? (Select all that apply)

• Equiangular

• Right

• Acute

• Obtuse

• Scalene

How do you know this is a right triangle?

Based on its angles, what type of triangle is this?

(a)  

This triangle (triangle I) could be classified as ...

• Obtuse Scalene

• Right Isosceles

• Right Equilateral

Classify this triangle.

• acute

• right

• obtuse

Which angle type is pictured?

• Acute
• Right
• Obtuse
• Straight

Classify this triangle by its angles

• Acute

• Obtuse

• Equilangular

• Right

Look at the sides of this triangle. What type of triangle is this?

• scalene

• acute

• equilateral

• isosceles

• parallel lines
• perpendicular lines
• intersecting lines
• a ray

• A
• B
• C
• D