Angles

Front

How many degrees are in a full circle?

Back

360 degrees

Front

What do we call a point where 2 rays meet to form an angle?

Back

Vertex

Front

Where do we put the center of the protractor when measuring an angle?

Back

On the vertex

Front

What is the measurement of angle LRS?

Back

40°

Front

If one angle is 30 degrees, what is the measure of the other angle if they are complementary?

Back

60 degrees

Front

What is an acute angle?

Back

An angle that measures less than 90 degrees.

Front

What is a right angle?

Back

An angle that measures exactly 90 degrees.

Front

What is an obtuse angle?

Back

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

Front

What is a straight angle?

Back

An angle that measures exactly 180 degrees.

Front

What do we call angles that add up to 90 degrees?

Back

Complementary angles.