Given that P = (-5, 5) and Q = (-13, 10), find the component form and magnitude of 2 vector PQ -->.

a. <-16, 10>, sqrt 356

b. <-36, 10>, sqrt 349

c. <-16, 10>, sqrt 178

d. <16, -10>, sqrt 89

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.