The area of a circle refers to the amount of space enclosed by its circumference.
Think about cutting out circular cookies from dough. The area would be like measuring how much dough you used for each cookie.
Pi (π): Pi is an irrational number that represents the ratio between a circle's circumference and its diameter. It's approximately 3.14159.
Sector Area: A sector area is part of a circle enclosed by two radii and an arc, similar to slicing up your pizza into smaller pieces.
Annulus: An annulus refers to the region between two concentric circles, like when you stack different-sized circular objects on top of each other.
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