Grade 3 Math Angles

Front

What is an acute angle?

Back

An acute angle is an angle that measures less than 90 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

How many degrees are in a right angle?

Back

A right angle measures exactly 90 degrees.

Front

What is a straight angle?

Back

A straight angle measures exactly 180 degrees.

Front

What do we call an angle that measures exactly 90 degrees?

Back

A right angle.

Front

What is the sum of angles in a triangle?

Back

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

Front

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

Back

It is an acute angle.

Front

If an angle measures 120 degrees, what type of angle is it?

Back

It is an obtuse angle.

Front

What is the name of the angle formed by two rays that meet at a point?

Back

It is called a vertex.

Front

How many acute angles can be in a triangle?

Back

A triangle can have a maximum of 3 acute angles.