Question

a man travels from a village A on a bearing of 060 degrees to a village B which is 30km away. From B, he travels to another village C, on a bearing of 195 degrees. If C is directly east of A, calculate, correct to three significant figures, the distance of ; (a) B from C (b) C from A.

Answer 1

Draw the diagram.
Find CA using the law of cosines.
then find CB using the law of sines.