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Encyclopedia>Geometry>Planar Figures>Circles

Circles

Concepts Quadrilaterals Triangles

About the Circle Attributes Ellipses

Similar Figures The Golden Ratio

Geometric Constructions

Perspective Drawing

What Is the Circumference and Area of a Circle?
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What Is the Circle Constant Pi?
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What Is the Area of a Circular Sector?
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How Are Tangent, Secant and Chord of a Circle Related?
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What Are the Lines of Symmetry in a Circle?
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What Is the Equation of a Circle?
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What Does Thales's Theorem State?
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Circle of Apollonius
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What Is the Power of a Point Theorem?
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What Are Ellipses?
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What Is the Equation of an Ellipse?
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