説明中心

quadrilateral

[kwädrəˈlatərəl]

quadrilateral Definition

a four-sided polygon with four angles.

Using quadrilateral: Examples

Take a moment to familiarize yourself with how "quadrilateral" can be used in various situations through the following examples!

  • Example

    A square is a type of quadrilateral.

  • Example

    A kite is also a type of quadrilateral.

  • Example

    A rectangle is a quadrilateral with four right angles.

quadrilateral Synonyms and Antonyms

Synonyms for quadrilateral

Phrases with quadrilateral

  • a quadrilateral whose interior angles are all less than 180 degrees

    Example

    A parallelogram is a convex quadrilateral.

  • a quadrilateral whose interior angles are not all less than 180 degrees

    Example

    A star-shaped polygon is a concave quadrilateral.

  • a quadrilateral with at least one pair of parallel sides

    Example

    A parallelogram is a special type of trapezoid.

Origins of quadrilateral

from Latin 'quadri-' meaning 'four' and 'latus' meaning 'side'

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Summary: quadrilateral in Brief

A 'quadrilateral' [kwädrəˈlatərəl] is a four-sided polygon with four angles. It includes shapes like squares, rectangles, and kites. Quadrilaterals can be classified as convex or concave, depending on the measure of their interior angles. A trapezoid is a special type of quadrilateral with at least one pair of parallel sides.