quadrilaterals are consecutive and opposite angles always congruent?
Yes
All quadrilaterals have diagonally adjacent angles.
no they do not.
Yes.
A rhombus is always in the same class as 4 sided quadrilaterals because it too has 4 sides
rhombus
rectangle
Ahh yea they do
Quadrilaterals are shapes that always have four (4) sides
rectangle and parallelogram
no..for instance a parallelogram