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BandNerd922
27.09.2019 •
Mathematics
98 point! a wheelchair ramp must form an angle no greater than 4.8 degrees with the ground. if a 1.8 foot high ramp is needed, what is the minimum horizontal length for the ramp so it satisfies the angle requirement?
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Ответ:
The horizontal length must be at least 21. 4 ft
Step-by-step explanation:
We can use trigonometry to solve.
tan theta = opposite side over adjacent side
tan 4.8 = 1.8/ x where x is the horizontal side
Multiply each side by x
x tan 4.8 = 1.8
Divide each side by tan 4.8
x = 1.8 / tan 4.8
x = 21.4356283 ft
The horizontal length must be at least 21. 4 ft
Ответ: