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Fractions can be added and subtracted only if they're fractions. a. like b. proper c. improper d. unlike

Identify a1 and r for the geometric sequence an= -256(-1/4) n-1

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.