Alexis hikes from Point A to point B. The elevation at point A is 50 feet below sea level. The elevation at point B is 120 feet above sea level. What is the vertical
distance between point A and point B?"

the answer is:

the correct option is the option b.

to calculate the surface area of the right cylinder, we need to use the following formula:

from the picture we know that:

so, substituting and calculting we have:

hence, we have that the correct option is the option b.

have a nice day!

your answer is #3 , 8 - 3 square root of 11

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