Aparallelogram whose vertices have coordinates r(1, -1), s(6, 1), t(8, 5), and u(3, 3) has a shorter diagonal of .

Which is a logical conclusion based on the given information? a. figure abcd is a rhombus by the definition of a rhombus. b. segment ac is congruent to segment dc by cpctc. c. angle acb is congruent to angle adc by the angle-side-angle theorem. d. triangle acd is congruent to triangle cab by the hypotenuse-leg theorem.