# Past Papers’ Solutions | Cambridge International Examinations (CIE) | AS & A level | Mathematics 9709 | Pure Mathematics 1 (P1-9709/01) | Year 2016 | Oct-Nov | (P1-9709/13) | Q#7

Hits: 569 Question The diagram shows a triangular pyramid ABCD. It is given that i. Verify, showing all necessary working, that each of the angles DAB, DAC and CAB is 90o. ii. Find the exact value of the area of the triangle ABC, and hence find the exact value of the volume of the pyramid. [The volume V of a […]