Angles Checkpoint

Front

What is a ray?

Back

A ray is a part of a line that has a fixed starting point and extends infinitely in one direction.

Front

What shape has exactly 4 right angles?

Back

A square has exactly 4 right angles.

Front

What is a straight angle?

Back

A straight angle is an angle that measures exactly 180 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 an acute angle?

Back

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

Front

What is the sum of angles in a triangle?

Back

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

Front

What is a right angle?

Back

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

Front

What is the difference between acute and obtuse angles?

Back

Acute angles are less than 90 degrees, while obtuse angles are more than 90 degrees.

Front

What do we call an angle that measures exactly 0 degrees?

Back

An angle that measures exactly 0 degrees is called a zero angle.

Front

What is a full rotation in degrees?

Back

A full rotation is 360 degrees.