Understanding Angles

What is the point called where two rays meet to form an angle?

• Edge

• Intersection

• Corner

• Vertex

Which of the following is a characteristic of a right angle?

• It measures exactly 180°

• It measures more than 90° but less than 180°

• It is always less than 90°

• It is marked with a box in the corner

What type of angle is less than 90°?

• Acute angle

• Obtuse angle

• Right angle

• Reflex angle

What is the degree measurement of a straight angle?

• 270°

• 360°

• 180°

• 90°

How can you identify a reflex angle?

• It is exactly 180°

• It is always less than 90°

• It is marked with a box in the corner

• It is measured around the outside edge