Mathematics

Question

A wheelchair ramp rises from the ground at a 4.5° angle of elevation. The end of the ramp is 3 ft above the ground.
How long is the ramp?
Round your answer to the nearest tenth of a foot.
A. 12.9
B. 13.5
C. 23.6
D. 38.2

2 Answer

  • See attached file for the drawing and illustration of the given problem.
    I have assigned "X" to be the length of the ramp.

    We can use and apply SOH CAH TOA to find the value of x. The solution is shown below:
    sin4.5 ° = 3 / x
    x = 3/sin4.5
    x= 38.2°

    The answer is the letter "D".
  • Answer:

    D.38.2

    Step-by-step explanation:

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