Kennath's back yard is in the shape of a rectangle with a length of 12 yards and width of 10 yards. a bag of grass seed costs $25.99 and covers 400 square feet. how much will kenneth spend on grass seed to cover his back yard?

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.