Don't take our word for it! Measure the angles for yourself with our interactive protractor.
How about a friendly class competition for estimating the size of an angle?
Already a member? You need to log in to access this resource.
AS algebra introduction New!Algebra | Factorising polynomials | Quadratics – factorising and expanding
Negative Numbers Pyramid-addition New!Number | Negative numbers
Negative Numbers New!Number | Negative numbers
Don't have an account? Sign up »