Classify Triangles

• acute

• obtuse

• right

A triangle can be classified as an isosceles triangle if there are two equal sides.

• True

• False

Classify this triangle by its sides and angles.

• acute & scalene

• right & scalene

• right & equilateral

• acute & equilateral

Classify this triangle by its sides and angles.

• obtuse & equilateral

• obtuse & isosceles

• right & isosceles

• right & equilateral

Classify this triangle by its sides and angles.

• obtuse & isosceles

• right & scalene

• right & isosceles

• obtuse & scalene

Name this triangle

• Acute, Scalene
• Obtuse, Scalene
• Right, Isosceles
• Acute, Equilateral

The Triangle Sum Theorem states that the sum of all angles in a triangle is ______. 

• 45°
• 90°
• 180°
• 360°

What is the characteristics of an Equilateral triangle?

• Two sides are equal

• All three sides and all three angles are equal

• No sides are equal

How would you classify this triangle?

• Right Triangle

• Obtuse Triangle

• Acute Triangle

Classify the triangle by angles and sides.

• Equiangular Equilateral
• Right Isosceles
• Right Scalene
• Acute Isosceles