A rhombus is one of them
No, it means they have either 2 sides and 1 angle congruent, 2 angles congruent, 2 angles and a side congruent, or 3 sides congruent.
a square
Similar shapes.
Same-side interior angles are supplementary. They are not always congruent, but in a regular polygon adjacent angles are congruent.
Yes they are. Or they could have three pairs of congruent sides, or they could have one pair of congruent angles and two pairs of sides. As far as a triangle goes, if you have at least three pairs of congruent sides or angles they are congruent. This answer is wrong. The triangles are only similar. For congruent trisngles we have the following theorems = Side - side - side, Side - Angle - side , Angle - angle - side, Right triangle - hypotenuse - side.
that's a square
Square
It has to have 4 right angles and both pairs of the side congruent.
This is either a square or a rectangle.
Irregular hexagon has 2 right angles all other sides are congruent. How large is each one?
The angles will be 90, 45 and 45 degrees
If two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, then the triangles are congruent.