Geometry Vocabulary

Front

What is a reflection in geometry?

Back

A transformation that flips a figure over a line, creating a mirror image.

Tags

CCSS.HSG.CO.A.5

CCSS.8.G.A.3

Front

What is a rotation in geometry?

Back

A transformation that turns a figure around a fixed point at a certain angle.

Tags

CCSS.HSG.CO.A.5

CCSS.8.G.A.3

Front

What is a translation in geometry?

Back

A transformation that slides a figure in a straight line from one position to another without changing its shape or orientation.

Tags

CCSS.HSG.CO.A.5

CCSS.8.G.A.3

Front

What is a straight angle?

Back

An angle that measures exactly 180 degrees.

Tags

CCSS.4.G.A.1

Front

What is a ray in geometry?

Back

A part of a line that starts at a point and extends infinitely in one direction.

Tags

CCSS.4.G.A.1

Front

What does it mean for points to be coplanar?

Back

Points that lie on the same plane.

Tags

CCSS.HSG.CO.A.1

Front

What is the difference between a line and a line segment?

Back

A line extends infinitely in both directions, while a line segment has two endpoints.

Tags

CCSS.4.G.A.1

Front

What is the definition of a point in geometry?

Back

A location in space that has no size or dimension.

Tags

CCSS.HSG.CO.A.1

Front

What is the purpose of geometric transformations?

Back

To manipulate figures in space to understand their properties and relationships.

Tags

CCSS.HSG.CO.A.2

Front

What is the angle of rotation for a 90-degree clockwise rotation?

Back

A rotation that turns a figure 90 degrees to the right.

Tags

CCSS.HSG.CO.A.5

CCSS.8.G.A.3