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
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.
Similar shapes.
Same-side interior angles are supplementary. They are not always congruent, but in a regular polygon adjacent angles are congruent.
Square
that's a square
No, not all right triangles are congruent. Right triangles can have different side lengths and angles, as long as one angle is 90 degrees. Two right triangles are congruent if their corresponding sides and angles are equal, which is determined by criteria such as the Hypotenuse-Leg (HL) theorem or the Side-Angle-Side (SAS) criterion. Therefore, while some right triangles can be congruent, many others will not be.
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