Naming Angles

Front

What is an obtuse angle?

Back

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

Front

What is the vertex of an angle?

Back

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

Front

What are supplementary angles?

Back

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

Front

What is an angle?

Back

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

Front

How do you name an angle?

Back

An angle is typically named using three points, with the vertex point in the middle, such as angle ABC.

Front

What is a ray?

Back

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

Front

What is a line segment?

Back

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

Front

What is the difference between acute and obtuse angles?

Back

An acute angle measures less than 90 degrees, while an obtuse angle measures more than 90 degrees.

Front

What does angle RST represent?

Back

Angle RST represents the angle formed by the rays RS and RT.

Front

How can you identify an angle in a figure?

Back

An angle can be identified by looking for the vertex and the two rays that form it.