Classifying Triangles

Identify the triangle by its sides

• acute isosceles

• obtuse scalene

• obtuse isosceles

• acute scalene

Identify the triangle by its sides and angles

• Right Isosceles

• Right Scalene

• Right Equilateral

All acute triangle are Equilateral

• True

• False

An isosceles triangle has how many congruent sides?

• 1

• 2

• 3

What kind of angle does this triangle have

• Right

• Obtuse

• Acute

Identify the triangle by its sides and angles

• Acute Equilateral

• Right Equilateral

• Acute Isosceles

• Obtuse Isosceles

Which type of angle is this?

• Acute
• Right
• Obtuse
• Straight

Which type of angle is this?

• Acute
• Right
• Obtuse
• Straight

Identify this triangle by its sides

• Right

• Scalene

• Isosceles

• Equilateral

An obtuse triangle has at least one angle that is bigger than ______ degrees.

• 90

• 45

• 180