B is on a bearing of 060° and a distance of 10km from A. C is on a bearing of 130° from B and a bearing of 100 ° a) b) c) d) from A. Sketch the bearing question for the above information. Explain clearly why ∠ABC = 110° . Deduce that ∠ACB = 30° Calculate the distance between points B and C.

“exterior angles of triangles. an exterior (or external) angle is the angle between one side of a triangle and the extension of an adjacent side. try this drag the orange dots on any vertex to reshape the triangle.” look to get to the answer i explained what it means and other things i hope it you .

The answer is d $21.65 i got that on a test in school before and got an a+ it should be d