Amanda decided to spend 4 1/2 hours studying over the weekend. She spent 1 1/5 hours studying Friday afternoon and 3 1/4 hours on Saturday. How much longer does she need to spend studying on Sunday in order to reach her goal?

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.