4.6C Classify Angles

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 a right angle?

Back

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

Front

What is a straight angle?

Back

A straight angle is an angle that measures exactly 180 degrees.

Front

What type of triangle has one angle greater than 90 degrees?

Back

An obtuse triangle has one angle greater than 90 degrees.

Front

What type of triangle has all angles less than 90 degrees?

Back

An acute triangle has all angles less than 90 degrees.

Front

What type of triangle has one angle that measures exactly 90 degrees?

Back

A right triangle has one angle that measures exactly 90 degrees.

Front

What is an equilateral triangle?

Back

An equilateral triangle is a triangle where all three sides and all three angles are equal.

Front

If an angle measures 45°, what type of angle is it?

Back

It is an acute angle.

Front

If an angle measures 94°, what type of angle is it?

Back

It is an obtuse angle.