The ramp on the back of a moving van is 7 ft high and rises at an angle of 28°. How long is the ramp? Round to the nearest foot.

Question

The ramp on the back of a moving van is 7 ft high and rises at an angle of 28°. How long is the ramp? Round to the nearest foot.

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Thanh Thu 3 years 2021-08-11T17:04:09+00:00 1 Answers 0 views 0

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  1. Amity
    0
    2021-08-11T17:05:54+00:00
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    Answer:

    6 feets

    Step-by-step explanation:

    Height of ramp = 7feets

    θ = 28°

    Length of ramp = x

    Using trigonometric relation :

    Sin θ = opposite / hypotenus

    Sin 28 = 3 / x

    0.4694715 = 3 / x

    0.4694715x = 3

    x = 3 / 0.4694715

    x = 6.39 feets

    The length of the ramp = 6 feets

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