Welcome to the fascinating world of circles! Circles are everywhere, from the wheels of a car to the face of your clock. Let's dive into the delightful geometry of circles:
- Radius: The distance from the center to the boundary of the circle.
- Diameter: Twice the radius, or the length of a straight line through the center connecting two points on the boundary.
- Circumference: The total distance around the circle, calculated as C = πd or C = 2πr.
- Area: The space contained within the boundary, calculated as A = πr².
Circles are an essential part of geometry, and they are used in various fields including engineering, architecture, and art. 🌀