Solution: Given h/a=tan 45°
a=h
h/b=tan26°
b=h/tan26°
b=2.05h
100²=a²+b²-2abcos 120°
10000=h²+(2.05)²-2*h*2.05*h
h=37.1m
I can't visualise this problem at all!!
From a point due North of a tower, the angle of elevation to the top of the tower is 45 degrees. From point B, 100M ON A BEARING OF 120 DEGREES FROM a, THE angle of elevation is 26 degrees. Find the height of the tower.