Geometry Vocabulary 1

Front

What is an undefined term in geometry?

Back

An undefined term is a basic concept that is not formally defined but is understood through its common usage. Examples include point, line, and plane.

Tags

CCSS.4.G.A.1

Front

What is a point in geometry?

Back

A point is a location in space that has no size or dimension. It is often represented by a dot.

Tags

CCSS.4.G.A.1

Front

What is a line in geometry?

Back

A line is a straight one-dimensional figure that extends infinitely in both directions with no endpoints.

Tags

CCSS.4.G.A.1

Front

What is a line segment?

Back

A line segment is a part of a line that has two endpoints.

Tags

CCSS.HSG.CO.A.1

Front

What is a ray in geometry?

Back

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

Tags

CCSS.4.G.A.1

Front

What is the definition of slope?

Back

Slope is a number that measures the steepness of a line, calculated as the ratio of the rise (vertical change) to the run (horizontal change).

Tags

CCSS.8.EE.B.5

Front

What are perpendicular lines?

Back

Perpendicular lines are two lines that intersect to form a 90-degree angle.

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

Front

What are parallel lines?

Back

Parallel lines are lines in a plane that never meet and are always the same distance apart.

Tags

CCSS.HSG.CO.A.1

Front

What is an angle in geometry?

Back

An angle is formed by two rays that share a common endpoint, called the vertex.

Front

What is a triangle?

Back

A triangle is a polygon with three edges and three vertices.

Tags

CCSS.2.G.A.1