Sagot :
Answer:
1. A polygon that does not have all sides equal and all angles equal. (A polygon is "regular" only when all angles are equal and all sides are equal, otherwise it is irregular.) just like the picture below
2. In mathematics, we say that two objects are similar if they have the same shape, but not necessarily the same size. ... If the objects also have the same size, they are congruent.
Step-by-step explanation:
EXPLINATION IN NUMBER 11 IS IN THE PIC
![View image Questioner0008](https://ph-static.z-dn.net/files/d37/eff330ce569627b807c3543dc56af299.jpg)