Answer:1212.08 ft
Step-by-step explanation:
Given
Height of Della=5.5 ft
Height of Tower H=1450
angle of elevation [tex]50^{\circ}[/tex]
Effective height of building for Della=1450-5.5=144.5 ft
From the figure we can write
[tex]\tan 50^{\circ}=\dfrac{1444.5}{x}\\x=\dfrac{1444.5}{\tan 50^{\circ}}\\x=1212.079\approx 1212.08\ ft[/tex]
