Question 402317
The grade or slope (m) of a roof is defined as:{{{rise/run}}}
In this problem the rise is given as 1.4 ft. while the run (horizontal distance) is given as 11.8 ft., so...
{{{m = 1.4/11.8}}}
{{{m = 0.1186}}} This is the grade of the roof.
You may see this as a percent, so multiply by 100.
{{{100(0.1186) = 11.86}}} which would probably be rounded up to 12% grade.