A circle C C\,C has centre (4,2)(4,2)(4,2) The point AAA (10,5)(10, 5)(10,5) lies on the circumference of the circle.
Find the equation of the tangent to the circle at AAA.
130 exam-style questions on Eduqas GCSE Maths Perpendicular Lines and the equation of a tangent. Each one has a worked solution and a mark scheme showing where the marks go.