Angles, Angles, Everywhere

Front

What is an angle?

Back

An angle is formed when two rays meet at a common endpoint.

Front

What are the two parts of an angle called?

Back

The two parts of an angle are called rays and the common endpoint is called the vertex.

Front

What is the measure of a right angle?

Back

A right angle measures 90 degrees.

Front

What is an acute angle?

Back

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

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 a straight angle?

Back

A straight angle measures exactly 180 degrees.

Front

What is a full rotation in degrees?

Back

A full rotation is 360 degrees.

Front

How do you classify angles based on their measures?

Back

Angles can be classified as acute (less than 90°), right (90°), obtuse (more than 90° but less than 180°), and straight (180°).

Front

What is the name of the point where two rays meet?

Back

The point where two rays meet is called the vertex.

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.