A four-sided figure whose vertices lie on a circle is called what?

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Multiple Choice

A four-sided figure whose vertices lie on a circle is called what?

Explanation:
When a four-sided figure has all four vertices on a circle, that circle is called its circumcircle and the shape is described as cyclic. This term names the general condition, not a specific type of quadrilateral. A square or rectangle can be inscribed in a circle, so they are examples of cyclic quadrilaterals, while a parallelogram isn’t typically cyclic unless it’s a rectangle. So the name for any four-sided figure with vertices on a circle is a cyclic quadrilateral.

When a four-sided figure has all four vertices on a circle, that circle is called its circumcircle and the shape is described as cyclic. This term names the general condition, not a specific type of quadrilateral. A square or rectangle can be inscribed in a circle, so they are examples of cyclic quadrilaterals, while a parallelogram isn’t typically cyclic unless it’s a rectangle. So the name for any four-sided figure with vertices on a circle is a cyclic quadrilateral.

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