Types of Angles and Triangles

How much do all the angles in a triangle add up to?

• 360

• 180

• 100

• 200

An angle is formed when two straight lines or rays meet at a common endpoint.

• True

• False

The symbol ∠ represents an angle.

• True

• False

Angles are measured in degrees (°) using a protractor.

• True

• False

What type of angle is this?

• Right angle

• Acute angle

• Reflex angle

This is a right angle.

• True

• False

Which angle below is a reflex angle?

• 
• 
• 

What is the name of this technical drawing tool?

• Ruler

• Protractor

• Compass

An angle measuring exactly 180° is a straight angle.

• True

• False

A complete angle measure equals 360°.

• False

• True