The amount of grilling time, in minutes, varies directly with the thickness of the steak, in inches. If a 1.5-inch steak needs 12 minutes of grilling time, how many minutes of grilling time does a 2-inch steak need? A 2-inch steak needs grilling time.

In the figure below, ∠dec ≅ ∠dce, ∠b ≅ ∠f, and segment df is congruent to segment bd. point c is the point of intersection between segment ag and segment bd, while point e is the point of intersection between segment ag and segment df. the figure shows a polygon comprised of three triangles, abc, dec, and gfe. prove δabc ≅ δgfe.