What is the mode of the following dot plot? 10 20 30 40 50 60 70 80 90 100
There is no mode.
60
80
20

Is the orthocenter of a triangle on the inside ?

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

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.