CAIE P1 2021 March — Question 8

Exam BoardCAIE
ModuleP1 (Pure Mathematics 1)
Year2021
SessionMarch
TopicCircles

8 The points \(A ( 7,1 ) , B ( 7,9 )\) and \(C ( 1,9 )\) are on the circumference of a circle.
  1. Find an equation of the circle.
  2. Find an equation of the tangent to the circle at \(B\).