Angle 1 and Angle 3 are vertical angles. The measure of Angle 1 is and the measure of Angle 3 is . What is the value of x?

How can you decide witch operations to use to slice a two step equation

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.

Someone which statements are true? check all that apply.