the number 0.123456789... is a(n) number. A. Rational
B. Irrational
C. Radical
D. Imaginary

The trigonometric ratios sine and secant are reciprocals of each other

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.

In a column proof the right column states your reasons