Which inequality describes the possible values of x? There are three triangles , triangle ABC, triangle CDE, and triangle EFG. The points A, C , E, and G are collinear, points B, C, and D are collinear, and points D, E, and F are collinear. Side AC, side CE, and side EG are congruent to each other. Side AB, side DE, and side EF are congruent to each other. The length of side BC is 12 and the length of side CD is 10. The measure of angle BAC is 50 degrees and the measure of angle DEC is (5x-10) degrees.