Angles Year 3 & 4

Angles Year 3 & 4 KS2 Maths. Learn about the types of angles, right, acute, obtuse and reflex angles. How to estimate angles wth games & worksheets.

Pick a level

Right Angles

Right angles are equal to a quarter of a turn or 90°.

Looking at angles

Angles can be more than or less than a right angle.

Types of angles

There are four types of angles. Right angles we already know about. Acute angles are less than a right angle. Obtuse angles are more than a right angle. However, if they are more than a straight line they are reflex angles.

Still having problems working out what an angle is? Use this chart to help you work it out.

v>

Estimating angles

If you want to know how big an angle is you can estimate the angle. To do this, use your knowledge of angles that you do know.

Question: Estimate the angle below.

Alien Angles
Your job is to set the angle on the rescue launcher. Can you estimate the angles within 5 degrees?.

Big and small angles

Remember that angles stay the same size if the image is big or small. It doesn't make a difference to the angle.

Also on Super Brainy Beans