Classifying Triangles by Angles

Based on it's angles, what type of triangle is this?

• acute triangle

• obtuse triangle

• right triangle

• equiangular triangle

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

• Acute triangle

• Obtuse triangle

• Isosceles triangle

• Right triangle

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

• Scalene triangle

• Acute triangle

• Obtuse triangle

• It looks like a roof.

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

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

An acute triangle has how many acute angles?

• 1

• 2

• 3

• none

Which type of triangle is pictured?

• Equilateral Triangle

• Right Isosceles Triangle

• Obtuse Scalene Triangle

• Obtuse Equilateral Triangle

Classify this triangle by its angles.

• Acute

• Scalene

• Equilateral

• Equiangular

A triangle has angle measurements of 26°, 59°, and 95°. What kind of triangle is it?

• acute triangle

• right triangle

• obtuse triangle

• none of the above

If all three angles are exactly the same measure, how big is each angle?
Hint:    x + x + x  = 180

• 180 degrees

• 90 degrees

• 50 degrees

• 60 degrees