points, lines, planes, line segments, rays, and angles

Front

What is a point in geometry?

Back

A point is a specific location in space that has no dimensions, represented by a dot.

Tags

CCSS.4.G.A.1

Front

Define a line in geometric terms.

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 is bounded by two distinct 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 an angle?

Back

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

Front

What is an acute angle?

Back

An acute angle is an angle that measures less than 90 degrees.

Tags

CCSS.4.G.A.1

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Tags

CCSS.4.G.A.1

Front

What is an obtuse angle?

Back

An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees.

Tags

CCSS.4.G.A.1

Front

What are perpendicular lines?

Back

Perpendicular lines are lines that intersect at a right angle (90 degrees).

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