ADA guidelines mandate a 1:12 ratio of rise to run for wheelchair ramps. How long (horizontally) would a ramp need to extend to elevate a person from a height of 2 feet to a height of 6 feet? If a ramp extends 30 feet horizontally, what is the maximum increase in elevation that it could result in?

Step-by-step explanation:

If the slope of a ramp is between 1:12 and 1:16, the maximum rise shall be 30 inches (760 mm) and the maximum horizontal run shall be 30 feet (9 m). If the slope of the ramp is between 1:16 and 1:20, the maximum rise shall be 30 inches (760 mm) and the maximum horizontal run shall be 40 feet (12 m).

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option: d is the correct answer.

d) none of the above.

step-by-step explanation:

clearly from the figure attached to the question we could see that there is no shape given. hence without any shape given in the figure and after rotation we can't obtained a square pyramid.

since, to obtain a image we need a proper figure of the pre-image so that it can be transformed.

hence, the correct answer is:

d) none of the above.

step-by-step explanation: