Exploring Angles in Flipped Geometry

What is formed by two rays with a common endpoint?

• A circle

• An angle

• A segment

• A line

Tags

CCSS.4.G.A.1

What is the common endpoint of an angle called?

• Base

• Vertex

• Side

• Apex

How can you name an angle using three letters?

• Any letter can be the vertex

• The last letter must be the vertex

• The middle letter must be the vertex

• The first letter must be the vertex

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1

What is the measure of angle ABC if it is 60°?

• mABC = 60°

• ABC = 60°

• mABC = 60

• ABC = 60

Tags

CCSS.4.G.A.1

Which of the following is an acute angle?

• An angle measuring 120°

• An angle measuring 90°

• An angle measuring 180°

• An angle measuring 45°

Tags

CCSS.4.G.A.1

What type of angle measures exactly 90°?

• Acute angle

• Obtuse angle

• Straight angle

• Right angle

Tags

CCSS.4.G.A.1

What is the symbol used to signify a 90° angle in geometry?

• A right angle symbol

• A small circle

• A triangle

• A square

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1

What is the measure of a straight angle?

• 90°

• 360°

• 180°

• 270°

Tags

CCSS.4.G.A.1

Which type of angle is greater than 90° but less than 180°?

• Right angle

• Acute angle

• Obtuse angle

• Straight angle

Tags

CCSS.4.G.A.1

What should you do if you have questions about the examples?

• Ask a friend

• Look it up online

• Ask the teacher in class

• Skip the question