Ok this may be hard but I found this on my test ;--; 6*8*9*4*3/6/8/93-9-6*4*99-0=

and now im freaking out cause im not good in math so can someone help...I only have 20 minutes left ;--;

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.

How do you find the circumfrance of a circle?

Is it greater than or less than7*3_9*2