Six shapes are shown below. Some of these are regular polygons, some are irregular polygons and some are not polygons.

Step-by-step explanation:

I did this on mathswatch and the right answer was

Regular:C

Irregular:A,B,E

Not Polygon = F,D

false.

step-by-step explanation:

false.

cavalieri's principle makes that statement about the volumes, not about the areas.

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square