The formula is the radius of the circle squared (multiplied by itself) times pi, which is a number that goes on forever and never repeats. Some people use 3.1415925, but it is most commonly considered as 3.14
This is most often written πr2 =Area of the circle where r is the radius of the circle. Using 3.14 as an approximation for π, we have Area=3.14 x r2
*analogy- comparison if two things alike in some aspects or they will be semble one another in other aspect. *intuiton - mental ability same as guessing. *inductive - forming of general statement from particular specific case. *deductive - making conclusion from general to particular stances.
If you had a 3D shape made out of paper, that was all folded and taped together, and you pulled the tape off and layed the figure out flat, then you would get the net of the three dimensional solid.