Question

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Answer 1

1064 ft.

Explanation:

Start by sketching out a figure to represent the situation, it should look something like this:

(See picture)

(Figure definitely not drawn to scale)

The angle marked in red measures 4.3°, then we can use the law of sines to solve for the height of the Eiffel Tower (represented as the variable x):

`(sin(4.3))/(80)= (sin85.7)/(x)\\x=(80sin85.7)/(sin4.3)\\x=1063.96592818...`

Rounding gives 1064 ft.