A steel support beam of length 6.5m is connected to a wall at a height of 4.7m from the ground. Find the distance (to the nearest cm) between the base of the building and the point where the beam is joined to the ground.

Aline is perpendicular to another line m2= (-1/m1), where m1 is the slope of the original line and m2 is the slope of the perpendicular line. which of the following equations represents the line that passes through the point (-2,1) and is perpendicular to the line below?