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You want to determine the height of the screen at a drive-in movie theater. You use a cardboard square to line up the top and bottom of the screen structure. The vertical distance from the ground to your eye is 5.5 ft and the horizontal distance from you to the screen is 14 ft. The bottom of the screen is 6 feet from the ground. Approximate the height of the screen to the nearest tenth.

Answer :

In order to determine the height of the screen of the drive-in movie theater, we must have to create the figure as per the question statement.

The height of the screen of the drive-in movie theater is [tex]35\:\rm ft[/tex].

Given:

The vertical distance from the ground to your eye is 5.5 ft.

The distance from you to the screen is 14 ft.

The bottom of the screen is 6 feet from the ground.

Refer the attached figure, [tex]\Delta ADB[/tex] and [tex]\Delta ADC[/tex] are the similar triangles.

Thus, the triangle [tex]\Delta ABD[/tex] is,

[tex]\angle ABD+\angle BAD=90^{\circ}[/tex]

Consider the triangle [tex]\Delta ABC[/tex].

[tex]\angle ABD+\angle ACB=90^{\circ}[/tex]

From the above equation [tex]\angle BAD=\angle ACB[/tex]

The ratios of their corresponding sides are the same,

[tex]\dfrac{5.5}{14}=\dfrac{14}{DC}\\DC=\dracf{196}{5.5}\\DC=35.63 \:\rm feet[/tex]

Calculate the length BC.

[tex]BC = 5.5 + 35.63 \\BC= 41.13\:\rm ft[/tex]

The bottom of the screen is 6 feet from the ground.

[tex]h = 41.13 - 6\\h = 35.13\: \rm ft[/tex]

Thus, the height of the screen of the drive-in movie theater is [tex]35\:\rm ft[/tex].

Learn more about triangle here:

https://brainly.com/question/9901632

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