The coordinate grid shows parallelogram PQRS. R
P
S
Parallelogram PQRS is rotated 90° clockwise about the origin to create parallelogram P'o'R's Which rule
describes this transformation?

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.