Skip to content
Go to teachersPupils ✏️
CasharOpen learning
SO — SoomaaliEN — English
Change unit
Ma

Circle theorems

Year 10 • Maths

Choose a lesson (11)

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