# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2013 | Oct-Nov | (P1-9709/13) | Q#6

Question The diagram shows sector OAB with centre O and radius 11 cm. Angle radians. Points C and D lie on OA and OB respectively. Arc CD has centre O and radius 5 cm. i. The area of the shaded region ABDC is equal to k times the area of the unshaded region OCD. Find k. ii. […]