Chapter 3.1, Problem 39E

Are quadrilaterals ABCD and EFGH congruent if:

a) $\overline{AB}\cong \overline{EF}$, $\overline{BC}\cong \overline{FG}$,

$\overline{CD}\cong \overline{GH}$ and $\overline{AD}\cong \overline{EH}$?

b) $\overline{AB}\cong \overline{EF}$, $\overline{BC}\cong \overline{FG}$, $\overline{CD}\cong \overline{GH}$, $\overline{AD}\cong \overline{EH}$, and diagonal $\overline{DB}\cong$ diagonal $\overline{HF}$?