# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2019 | Oct-Nov | (P1-9709/11) | Q#10

Hits: 14 Question Relative to an origin O, the position vectors of points A, B, C and D, shown in the diagram, are given by are given by and i. Show that AB is perpendicular to BC. ii. Show that ABCD is a trapezium. iii. Find the area of ABCD, giving your answer correct to […]