Homework Help: Math

Posted by Anon on Monday, December 3, 2012 at 12:57pm.

The grade of a highway up a hill is 50%. How much change in horizontal distance is there if the vertical height of the hill is 175 feet?

Math - Henry, Wednesday, December 5, 2012 at 9:25pm
sinA = 50%/100% = 0.50.
A = 30o.

tan30 = Y/X = 175/X
X = 175/tan30 = 303 Ft.

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