Classifying Triangles

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

A triangle is made up of what?

• 3 vertices and 3 line segments
• 3 vertices and 3 lines
• 3 vertices ans 3 rays
• none of the above

A RIGHT triangle has ___________.

• 1 right angle

• 2 right angles

• 3 right angles

• no right angles

How are triangles classified?

• equal sides and types of angles

• number of sides and number of angles

• color and size

• angles

An OBTUSE triangle has _____________.

• 1 obtuse angle

• 2 obtuse angles

• 3 obtuse angles

• no obtuse angles

Look at the sides and angles of this triangle. Which type of triangle is pictured?

• Equilateral Triangle
• Scalene Triangle
• Isosceles Triangle
• Right Triangle

Harry drew the triangles shown. Which of the following correctly describes the triangles? 

• All triangles have a right angle.
• Only one triangle has an acute angle.
• All triangles have at least two obtuse angles.
• All triangles have at least one acute angles.

A triangle has angle measurements of 54°, 52°, and 74°. What kind of triangle is it?

• acute triangle
• right triangle
• obtuse triangle
• none of the above

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What is the name of this kind of triangle?

• Right
• Scalene
• Isosceles
• Equilateral

Classify the following Triangle

• Acute Scalene Triangle
• Acute Isosceles Triangle
• Right Scalene Triangle
• Obtuse Isosceles Triangle