A aircraft figure is a geometric figure that has actually no thickness. The lies totally in one plane. Listed below are instances of different species of airplane figures.

You are watching: A closed plane figure made up of line segments

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A aircraft figure have the right to be written of heat segments, curves, or a mix of the two. Airplane figures are regularly categorized as open or closed

Open

The segment or curve of an open number are not always connected. At least one endpoint of one side is not linked to the rest. Line segments, curves, angles, and also many other shapes are open.

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Closed

The heat segments or curves forming a closed figure are continuous, meaning there is no break. The lines/curves must also kind a closed an ar to be considered a closeup of the door shape. A closed number has area and perimeter. The adhering to are a couple of examples.

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Closed numbers can be further categorized into polygonal plane figures and non-polygonal plane figures.

Polygonal plane figures

A polygon is a closed plane figure created only utilizing line segments. The line segments are referred to as sides. A polygon contends least three sides. There are plenty of classifications of polygons; castle are often classified based on the variety of sides in the polygon.

Polygon# the sidesShape
Triangle3
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Quadrilateral4
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Pentagon5
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Hexagon6
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An n-sided polygon is dubbed an n-gon.

Non-polygonal airplane figures

If any kind of side or part of a plane figure is bent (not straight) the is no a polygon. The two many common types of non-polygonal plane figures we view in Geometry space a circle and also an ellipse.

Circle

A one is a aircraft figure formed by the collection of all points in a aircraft that are equidistant from a given, resolved point, dubbed the center.

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Ellipse

An ellipse is a airplane figure in the shape of one oval. We commonly think that it together looking choose a "flattened" or "stretched" circle. The figure listed below shows 2 ellipses.

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While the circle and also the ellipse are the most usual non-polygonal airplane figures we check out in Geometry, there are numerous others. As lengthy as any side or part of a plane figure is curved, it is a non-polygonal aircraft figure.