Geometric triangle with labeled points and segment lengths on a coordinate grid.
A geometric diagram showing a triangle ABC with points D, E, and F on its sides, and various segment lengths labeled, including DA = 1.05, EB = 1.6, CE = 1.6, AF = 1.72, FC = 1.72, and BD = 1.05. Points A, B, and C are plotted on a coordinate grid with coordinates (-4.15, 0.71), (-3.31, 2.64), and (-0.71, 0.78) respectively. D, E, and F are midpoints of segments c, a, and b, with coordinates (-3.73, 1.67), (-2.01, 1.71), and (-2.01, 1.71) respectively. The polygon t1 is formed by connecting points A, B, and C.