PLS HELP ME ASAP ILL GIVER BRAINliest

A20? -foot ladder is placed against a vertical wall of a? building, with the bottom of the ladder standing on level ground 19 feet from the base of the building. how high up the wall does the ladder? reach?

1-for what value of x is line a parallel to line b 2-for what value of x is line a parallel to line b

The figure below shows rectangle abcd and the triangle eca on a coordinate plane. which of the following expressions represents the perimeter of triangle of triangle eca in units