Identifying Parts and Types of Angles

Teacher Belle introduces angles, discussing their formation and parts. The video covers naming conventions for angles and explores various types, including right, acute, obtuse, straight, reflex, and complete angles. The lesson concludes with an exercise to identify angles from figures, reinforcing the concepts taught.

What do you get when you connect two points?

• A vertex

• A ray

• A line segment

• An angle

Tags

CCSS.4.G.A.1

What is formed when two rays meet at a common endpoint?

• A line segment

• A straight line

• A point

• An angle

Tags

CCSS.4.G.A.1

What is the common endpoint where two rays meet called?

• Line segment

• Angle

• Vertex

• Side

Tags

CCSS.4.G.A.1

Which type of angle measures exactly 90 degrees?

• Straight angle

• Right angle

• Obtuse angle

• Acute angle

Tags

CCSS.4.G.A.1

What do you call an angle that measures less than 90 degrees?

• Acute angle

• Straight angle

• Obtuse angle

• Right angle

Tags

CCSS.4.G.A.1

Which type of angle measures more than 90 degrees but less than 180 degrees?

• Right angle

• Obtuse angle

• Complete angle

• Acute angle

Tags

CCSS.4.G.A.1

What is the measurement of a straight angle?

• 90 degrees

• 270 degrees

• 180 degrees

• 360 degrees

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1

What type of angle measures more than 180 degrees but less than 360 degrees?

• Straight angle

• Acute angle

• Right angle

• Reflex angle

Tags

CCSS.4.G.A.1

What is another name for a complete angle?

• Full angle

• Reflex angle

• Straight angle

• Right angle

Tags

CCSS.4.G.A.1

What type of angle is formed when it makes one full rotation?

• Straight angle

• Complete angle

• Right angle

• Reflex angle

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1