23) find mzecd if m_1 = 17x – 2 and
mzecd = 33x – 2.
a) 64°
c) 45°
b) 80°
d) 57°

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.