Angle Relationships

Define Obtuse Angle

• Less than 90 degrees

• Exactly 90 degrees

• Greater than 90 degrees and less than 180 degrees

• Exactly 180 degrees

Define Acute Angle

• Less than 90 degrees

• Exactly 90 degrees

• Greater than 90 degrees and less than 180 degrees

• Exactly 180 degrees

Right, acute, or obtuse?

• Acute
• Right
• Obtuse

Tags

CCSS.4.G.A.1

Right, acute, or obtuse?

• Right
• Acute
• Obtuse

Tags

CCSS.4.G.A.1

What is the measurement of a right angle?

• 70 degrees

• 80 degrees

• 90 degrees

• 180 degrees

What is the measurement of a straight angle?

• 100 degrees

• 180 degrees

• 360 degrees

• 240 degrees

Find the measure of the missing angle.

• 45 degrees
• 135 degrees
• 90 degrees
• 50 degrees

Tags

CCSS.4.MD.C.5

CCSS.4.MD.C.6

CCSS.4.MD.C.7

Find the measure of the missing angle.

• 154 degrees
• 26 degrees
• 180 degrees
• 64 degrees

Tags

CCSS.4.MD.C.5

CCSS.4.MD.C.6

CCSS.4.MD.C.7

This angle is written as......

•  ∠ABC
•  ∠ACB
• ∠BCA
• ∠CAB

Tags

CCSS.4.G.A.1

CCSS.4.MD.C.5

What is the arrow pointing to in the angle?

• a ray

• geometry

• vertex

• line

Tags

CCSS.HSG.CO.A.1