What's the square root of 1/36?

If given an equation of a line such as -1/2x+6 how would you create an equation of a line parallel and perpendicula to this line that goes through another point such as (4,10)

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Gh bisects fgi. find the measure of hgi •15° •21° •10° •8°