Respuesta :

Answer:

Because a circle doesn't have any sides and a polygon has miultiple sides

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Step-by-step explanation:

Answer:

There different because circles are round

Step-by-step explanation:

A polygon is made out of line segments. So we can measure is, find the area, etc. But when we have a circle, it doesn't have any line segments, so it is harder to find the area so we have to use a different technique.