Todo número entero tiene un número anterior verdadero o falso​

What is the distance between the points 4,10 and -3,-14 on the coordinate plane

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.

This is about circle theorems. someone asap : (