Points, Lines, Planes and Angles (and more)

Front

What is a point in geometry?

Back

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

Front

Define a line in geometric terms.

Back

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

Front

What is a plane in geometry?

Back

A plane is a flat two-dimensional surface that extends infinitely in all directions.

Front

What does it mean for points to be collinear?

Back

Collinear points are points that lie on the same straight line.

Front

What does it mean for points to be coplanar?

Back

Coplanar points are points that lie on the same plane.

Front

How do you find the measure of an angle?

Back

The measure of an angle can be found using a protractor or by using geometric relationships.

Front

What is the vertex of an angle?

Back

The vertex of an angle is the point where the two rays meet.

Front

What is the sum of the angles in a triangle?

Back

The sum of the angles in a triangle is always 180 degrees.

Front

What is a complementary angle?

Back

Complementary angles are two angles whose measures add up to 90 degrees.

Front

What is a supplementary angle?

Back

Supplementary angles are two angles whose measures add up to 180 degrees.