Two sides of a triangle measure 18 meters and 11 meters. if the perimeter of the triangle is 37 meters, what is the length of the third side? 12 m 8 m 66 m 30 m

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?