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5 October, 12:18

You want to find the height of a tower used to transmit cellular phone calls. You stand 100 feet away from the tower and mesure the angle of elevation to be 40°. How high is the tower to the nearest foot

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  1. 5 October, 12:35
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    84 feet to the nearest foot.

    Step-by-step explanation:

    We have a right angled triangle with adjacent side (A) = 100 and you want to find the height of the tower, the opposite side (O).

    A = 100, O = ? so we need the tangent, (from SOH-CAH-TOA).

    tan 40 = O / 100

    O = 100 tan 40

    = 83.9 feet.
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