Awheelchair ramp rises from the ground at a 4.5 degree 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.

the longitude of the ramp is determined by the Hypotenuse, we have the angle(4.5Âş), and the opposite side (3ft), so with the Sin(x) trigonometric function ( sin(x)=opposite/hypotenuse ) we can calculate the answer.
 Using the formula, hypotenuse=opposite/sin(x)
Hypotenuse=3ft/sin(4.5)
 hypotenuse=3ft/0.0784591
 hypotenuse=38.236482
   the ramp must be 38.2 ft long. the calc must be in degrees to get an accurate answer to any trigonometric function

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Step-by-step explanation: