OCR C2 2014 June — Question 1

Exam BoardOCR
ModuleC2 (Core Mathematics 2)
Year2014
SessionJune
TopicSine and Cosine Rules

1
\includegraphics[max width=\textwidth, alt={}, center]{9e95415c-00f5-4b52-a443-0b946602b3b4-2_426_1244_280_413} The diagram shows triangle \(A B C\), with \(A B = 8 \mathrm {~cm}\), angle \(B A C = 65 ^ { \circ }\) and angle \(B C A = 30 ^ { \circ }\). The point \(D\) is on \(A C\) such that \(A D = 10 \mathrm {~cm}\).
  1. Find the area of triangle \(A B D\).
  2. Find the length of \(B D\).
  3. Find the length of \(B C\).