All tickets for a local country concert are the same price. the ticket agency adds a fixed fee to every order. a person who orders 6 tickets pays $108. a person who orders 3 tickets pays $65.

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.