A flagpole is placed at the top of a tower. The angles of elevation of the bottom and top of the flagpole from a point on the ground 10m away are 40° and 50° respectively. Find the length of the flagpole.
-
A.
1.8m -
B.
3.5m -
C.
8.4m -
D.
11.9m -
E.
17.3m