4.10 - Geometric Lines

Front

What is a geometric line?

Back

A straight path that extends infinitely in both directions with no endpoints.

Front

What does it mean for two lines to be perpendicular?

Back

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

Front

What is a vertex in geometry?

Back

A point where two or more lines meet.

Front

How many degrees are in a right angle?

Back

90 degrees.

Front

What is a line segment?

Back

A part of a line that has two endpoints.

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.

Front

What is a ray in geometry?

Back

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

Front

What do we call the point where two lines cross?

Back

The intersection point.

Front

What is a horizontal line?

Back

A line that goes from left to right and is parallel to the horizon.

Front

What is a vertical line?

Back

A line that goes up and down and is perpendicular to horizontal lines.