If the bearing of b from a is 40,c from a is 90 what will be bearing of d from a,also draw the figure where a,b,c,d are the vertices of quadrilateral?

The following web site may help you:

Bearings (http://www.mathsteacher.com.au/year7/ch08_angles/07_bear/bearing.htm)

How to solve bearing question

A ship travels due north 80km on a bearing of 030 degress 120km. If the ship goes back to the starting position.how far and what bearing

How do I draw a diagram to illustrate the bearing of a ship P from a light house is 60 degrees