Having quiet a hard time with this trig stuff. REALLY CONFUSING!
Here's a question I've been trying to figure out for an hour:
John and Sally want to emasure the height of a chimney. They locate two points on the ground, A and B, that are 120 m apart in the same plane as the chimney. The angles of elevation to the top of the chimney are 21(degrees) from the point A and 33(degrees) from point B. I have to find the height of the chimney - to the nearest metre