Types of angle

Name: _____________________ Date: __________

Show your thinking with numbers, words, or a drawing.

1. What type of angle is marked? Choose from: acute, right, obtuse, straight or reflex.

1. obtuse

Compare the marked angle with a right angle and with a straight line.

It is bigger than a right angle but smaller than a straight line.

So it is an obtuse angle.

2. obtuse

Compare the marked angle with a right angle and with a straight line.

It is bigger than a right angle but smaller than a straight line.

So it is an obtuse angle.

3. obtuse

Compare the marked angle with a right angle and with a straight line.

It is bigger than a right angle but smaller than a straight line.

So it is an obtuse angle.

4. right

The small square marks a square corner.

It is exactly a right angle.

So it is a right angle.

5. acute

Compare the marked angle with a right angle, which is a square corner.

It is smaller than a right angle.

So it is an acute angle.

Choose a question from the printable. Use objects or a drawing to show your thinking, then explain your method to someone at home.