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Learn about circles, a 2-dimensional closed shape with a curved side and a center. Find out the formulas for area, circumference, arc length, and other circle properties, and see examples and practice problems.
Learn what a circle is, how to draw it, and how to calculate its area and circumference. Explore the parts, properties, and formulas of circles with video lessons and examples.
Learn what a circle is, how to draw it, and how to measure its radius, diameter, circumference and area. Explore the special names and properties of lines, slices and angles related to circles.
A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre. The distance between any point of the circle and the centre is called the radius. The circle has been known since before the beginning of recorded history. Natural circles are common, such as the full moon or a slice of round fruit.
Learn about the basics, properties, and equations of circles in geometry. Explore arc length, radians, inscribed angles, tangents, sectors, and more with practice questions and quizzes.
Learn what a circle is, its parts, formulas, and examples. Find out how to identify, measure, and draw circles and their segments, sectors, and arcs.
Learn what a circle is, its parts, properties, and how to find its area and circumference. See real-world examples of circles and practice questions with answers.
