Triangle Classification Angles and Side Lengths

1. What types of triangles describe the kind of sides a triangle has? Pick all that apply.

• Equilateral

• Scalene

• Obtuse

• Isosceles

2. What types of triangles describe the kind of angles a triangle has? Pick all that apply.

• Acute

• Obtuse

• Right

• Equilateral

3. Classify this triangle by sides:

• Scalene

• Isosceles

• Acute

• Equilateral

4. Classify this triangle by angles:

• Acute

• Obtuse

• Right

• Scalene

5. Classify this triangle by sides:

• Equilateral

• Isosceles

• Scalene

• Right

6. Classify this triangle by angles:

• Acute

• Obtuse

• Right

• Isosceles

7. Classify this triangle by sides:

• Equilateral

• Isosceles

• Scalene

• Acute

8. Classify this triangle by angles:

• Acute

• Obtuse

• Right

• Scalene

9. Which triangle is an obtuse triangle?

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10. Which triangle is an acute triangle?

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