Geometry Basics

On this line, there are two letters. These letters name something. What are they naming?

• Points

• A ray

• The line

• An angle

Tags

CCSS.4.G.A.1

What is between A and B? (named $\overline{ab}$ )

• A line

• A line segment

• A ray

• A right angle

Tags

CCSS.4.G.A.1

What kind of angle is this?

• Acute angle

• Right Angle

• Obtuse angle

• Reflex angle

Tags

CCSS.4.G.A.1

CCSS.4.G.A.2

What kind of angle is this?

• Reflex angle

• Obtuse angle

• Straight angle

• Acute angle

Tags

CCSS.4.G.A.1

CCSS.4.G.A.2

CCSS.4.MD.C.5

What kind of angle is this?

• Reflex angle

• Straight angle

• Obtuse angle

• Acute angle

Tags

CCSS.4.G.A.1

CCSS.4.G.A.2

CCSS.4.MD.C.5

What kind of angle is this?

• Reflex angle

• Obtuse angle

• Straight angle

• Acute angle

What kind of angle is this?

• Obtuse angle

• Right angle

• Straight angle

• Acute angle

Tags

CCSS.4.G.A.1

CCSS.4.G.A.2

What kind of lines never touch?

Tags

CCSS.4.G.A.1

CCSS.4.G.A.2

Perpendicular lines...

• Are the same thing as parallel lines

• Make 90 degree angles

• Never touch

• Make right angles

• Make an acute angle

Tags

CCSS.4.G.A.1

CCSS.4.G.A.2

What kind of angles are in this shape?

Tags

CCSS.4.G.A.1

CCSS.4.G.A.2