Which of the fallowing is a advantage of using equations

Monica build a remote control toy airplane for science project to test the plane she launched it from the top of a building the plane travel a horizontal distance of 50 feet before landing on the ground a quadratic function which models the height of the plane in feet relative to the ground at a horizontal distance of x feet from the building is shown

The solution set for 5v2 – 125 = 0 is

State if the two triangles are congruent. if they are, state how you know?