Answer:
690862 ft
Step-by-step explanation:
Consider Figure 1.1 in the attachment, first all dimensions must be in the same unit.
12 inches = 1 feet
2020 inch = 168.33 feet
Next, using trigonometric ratio,
[TeX] tan \theta = opposite/adjacent = 1010/168.33 [/TeX]
Therefore: [TeX] \theta = arctan(1010/168.33)=80.54 [/TeX]
Now at a particular point in time, the angle of elevation of the sun is the same on all objects, therefore the angle of elevation of the mast is the same as that of the vertical post.
Therefore [TeX] \theta = 80.54 [/TeX] in figure 1.2
[TeX] tan 80.54 = opposite/adjacent = x/115115 [/TeX]
x= 115115 X tan80.54 =690862ft.
Therefore the height of the phone tower is 690862ft
