Question

( left{begin{array}{l}x c 20 mend{array} quad ln Delta log A Bright. )
1
"S ( frac{1}{6^{circ}} B )
( A B=C B )
( sin Delta O A B )
[
32
]
( tan 60^{prime}=frac{0 C+C B}{A B} )
( 16.20=n+20 )
( (163-1) 20=n )
( 0.732 times 202 n )
( x=14.64 )

# From a point on the ground, the angles of elevation of the bottom and the top of a transmission tower fixed at the top of a 20 m high building are 45° and 60° respectively. Find the height of the tower. (Take 3 = 1.732)

Solution