Question

A roof rises 2.8 feet vertically and 8.1 feet horizontally. What is the grade of the roof?

Answer 1

19.06 with horihontal

Answer 2

19.06

Answer 3

36.0139 %

Answer 4

its 19.06....

\[\tan^{-1} (2.8/8.1)\]

Answer 5

Refer to: http://en.wikipedia.org/wiki/Grade_(slope)

Answer 6

actually in india we dunt study such things till +2 atleast...
so i thought this to be just the tangent inverse of the value.....

thnx for adding to my knowledge