Answer: The height of the cell phone tower can be determined using the concept of similar triangles.
We can set up a proportion between the heights and the shadows of the fence and the cell phone tower:
(height of fence) / (shadow of fence) = (height of cell phone tower) / (shadow of cell phone tower)
Plugging in the given values:
8 / 14.5 = (height of cell phone tower) / 72.5
Now we can solve for the height of the cell phone tower by cross-multiplying:
8 * 72.5 = 14.5 * (height of cell phone tower)
580 = 14.5 * (height of cell phone tower)
Divide both sides by 14.5 to isolate the height of the cell phone tower:
(height of cell phone tower) = 580 / 14.5
Simplifying the right side:
(height of cell phone tower) = 40
Therefore, the cell phone tower is 40 feet tall.
Hope it helps