From her eye, which stands 1.66 metersabove the ground, Deondra measures theangle of elevation to the top of aprominent skyscraper to be 70 degrees.If she is standing at a horizontal distanceof 276 meters from the base of theskyscraper, what is the height of theskyscraper? Round your answer to thenearest tenth of a meter if necessary.

From her eye which stands 166 metersabove the ground Deondra measures theangle of elevation to the top of aprominent skyscraper to be 70 degreesIf she is standi class=

Respuesta :

Given:

Angle of elevation = 70 degrees.

Distance from her eyes to the ground = 1.66 meters

Horizontal distance from the base = 276 meters.

Let's find the height of the skyscraper.

Let's first sketch a figure which represents this situation:

To find the height of the skyscraper, apply the trigonometric ratio formula for tangent:

[tex]tan\theta=\frac{\text{ opposite}}{adjacent}[/tex]

Where:

θ is the angle of elevation = 70 degrees

opposite side is the side opposite the angle = h

Adjacent side is the side adjacent the angle = 276 m

Thus, we have:

[tex]\begin{gathered} tan70=\frac{h}{276} \\ \\ h=276tan70 \\ \\ h=758.3 \end{gathered}[/tex]

Now, the total height of the skyscraper will be:

758.3 + 1.66 = 759.96 ≈ 760 m

Therefore, the height of the skyscraper is 760 meters.

ANSWER:

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