Angles

Front

What is an acute angle?

Back

An angle that is less than 90 degrees.

Front

What is an obtuse angle?

Back

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

Front

What is a right angle?

Back

An angle that is exactly 90 degrees.

Front

How do you identify an acute angle?

Back

If the angle measures less than 90 degrees.

Front

How do you identify an obtuse angle?

Back

If the angle measures more than 90 degrees but less than 180 degrees.

Front

What is the sum of angles in a triangle?

Back

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

Front

What type of angle is 45 degrees?

Back

It is an acute angle.

Front

What type of angle is 120 degrees?

Back

It is an obtuse angle.

Front

What type of angle is 90 degrees?

Back

It is a right angle.

Front

If two angles add up to 90 degrees, what are they called?

Back

They are called complementary angles.