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Circle theorems

Year 10 • Maths • Higher
We've put the lessons in order helping you build on what you've learned before so it’s best to start with the first lesson of a unit.

Choose a lesson (11)

1
Checking and securing understanding of the parts of a circle
2
The angle at the centre of the circle is twice the angle at any point on the circumference
3
The angle in a semicircle is a right angle
4
The perpendicular from the centre of a circle to a chord bisects the chord
5
The tangent at any point on a circle is perpendicular to the radius at that point
6
The angles in the same segment are equal
7
The alternate segment theorem
8
The opposite angles of a cyclic quadrilateral sum to 180°
9
The tangents from an external point are equal in length
10
Identifying which circle theorem to use
11
Problem solving with circle theorems