Homework Help: geometry

Posted by jerry on Monday, September 3, 2012 at 7:07pm.

a Street in san franscico has a 20% grade-that is it rises 20' for every 100' horizontally. Find the angle of elevation of the street?

geometry - Henry, Wednesday, September 5, 2012 at 4:55pm
tanA = 20%/100% = 0.20
A = 11.3o.

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