Answer:
580 ft.
Explanation:
The height of the cellphone tower can be found using the following proportion:
(shadow of cellphone tower) / (shadow of 10 foot post) = (height of cellphone tower) / (10 feet)
Solving for the height of the cellphone tower:
(116 feet) / (2 feet) = (height of cellphone tower) / (10 feet)
Which brings us to:
116 ÷ 2 = x ÷ 10
58 = x ÷ 10
580 = x
The cell phone tower is 580 ft.