1.

The angle of elevation of the top of an unfinished pillar at a point 150 metres from its base is 30 . The height (in metres) that the pillar must be raised so that its angle of elevation at the same point may be 45 , is (Take,

A. 63.4
B. 86.6
C. 126.8
D. 173.2
Answer» B. 86.6


Discussion

No Comment Found