Circles and Angles Flashcard

Front

What are the degrees on a right angle?

Back

90 degrees

Front

How many degrees are in a circle?

Back

360 degrees

Front

What is a vertex?

Back

A vertex is a point where two rays meet in an angle.

Front

What is the tool called for measuring angles?

Back

Protractor

Front

What are the degrees of an acute angle?

Back

1 degree - 89 degrees

Front

What is a straight angle?

Back

A straight angle is 180 degrees.

Front

What is an obtuse angle?

Back

An obtuse angle is greater than 90 degrees but less than 180 degrees.

Front

What is a full rotation in degrees?

Back

A full rotation is 360 degrees.

Front

What is a right angle?

Back

A right angle is exactly 90 degrees.

Front

What is a reflex angle?

Back

A reflex angle is greater than 180 degrees but less than 360 degrees.