Geometry Angle Vocabulary

What is an acute angle?

• Exactly 90 degrees

• Exactly 180 degrees

• Less than 90 degrees

• More than 90 degrees

Tags

CCSS.4.G.A.1

CCSS.4.G.A.2

CCSS.4.MD.C.5

What is a right angle?

• Less than 90 degrees

• Exactly 90 degrees

• More than 90 degrees but less than 180 degrees

• Exactly 180 degrees

Tags

CCSS.4.G.A.1

CCSS.4.G.A.2

CCSS.4.MD.C.5

What is an obtuse angle?

• Less than 90 degrees

• Exactly 90 degrees

• More than 90 degrees but less than 180 degrees

• Exactly 180 degrees

Tags

CCSS.4.G.A.1

CCSS.4.MD.C.5

What is a straight angle?

• Less than 90 degrees

• Exactly 90 degrees

• More than 90 degrees but less than 180 degrees

• Exactly 180 degrees

Tags

CCSS.4.G.A.1

CCSS.4.G.A.2

CCSS.4.MD.C.5

Name the vertex of this angle

• J

• I

• H

• Q

Tags

CCSS.4.G.A.1

CCSS.4.MD.C.5

Which angles are complementary angles?

• Angle BOC and COD

• Angle BOD and DOA

• Angle BOA and AOB

• Angle COD and DOA

Tags

CCSS.4.MD.C.5

CCSS.4.MD.C.6

CCSS.4.MD.C.7

Vertical angles are formed when 2 lines intersect and are

• Across from each other.

• Next to each other.

• On top of each other.

• Under each other.

Tags

CCSS.4.G.A.1

CCSS.4.G.A.2

Vertical angles

• Are always equal to each other.

• Are always acute.

• Are always obtuse.

Tags

CCSS.HSG.CO.C.9

The point where 2 line segments or rays meet is called a

• corner

• point

• dot

• vertex

Tags

CCSS.4.G.A.1

CCSS.4.MD.C.5

How many degrees are in a complete circle?

• 90 degrees

• 180 degrees

• 270 degrees

• 360 degrees

Tags

CCSS.4.MD.C.5