1. your algebra test scores for one semester.
2. the number of books you bring home each day.
3. the temperature in the school building for a day.
4. the time you spend studying each night.
5. the height above the ground for an aria plane.
are all of these discrete of continuous.

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.