# Circle

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Meaning of Circle

A circle is a lot of all focuses on a plane that are a fixed good ways from an inside. photo via wikipedia A circle (black), which is measured by its circumference (C), diameter (D) in cyan, and radius (R) in red; its centre (O) is in magenta.

The Radius is the good ways from the inside to the edge.

What is Diameter?

The Diameter begins at one side of the hover, experiences the inside and finishes on the opposite side.

What is Circumference?

The Circumference is the separation around the edge of the circle.

Circuit/Diameter = π (pi) = 3.14159

Area of a Circle

The territory of a circle is π (Pi) times the range squared, which is composed :

A = π × r2

Or then again, as far as the Diameter: A = (π/4) × D2

Let us comprehend this with the assistance of a model.

What is the territory of a hover with range of 1.2 m?

A = π × r2

A = π ×1.22

A = π × (1.2 × 1.2)

A = 3.14159… × 1.44 = 4.52 (up to 2 decimals)