Two-dimensional shapes - Orchids The International School
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Geometry

Two-dimensional shapes

Did you notice that every object around you is of some shape? Some shapes are closed where as some are open.

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Did you observe the difference between two shapes?

  • Open: Have space in between
  • Closed: No gaps in between

A shape is called a two-dimensional shape if it has only two dimensions: length and breadth.

Let us learn the shapes in geometry.

  • Circle:It is a closed round figure. It has no lines.
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  • Triangle:It is a three-sided figure. It is made by joining three straight lines.
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  • Square:It is a four-sided figure. It is made by joining four straight lines.
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  • Rectangle:It is also a four-sided figure.
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    Did you know?

    A figure which has 4 sides is called quadrilateral.

    Let us learn few names of polygons.

  • Pentagon:It is five-sided figure. It is made by joining five straight lines.
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  • Hexagon:It is a five-sided figure. It is made by joining five straight lines.
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  • Heptagon:It is a seven-sided figure. It is made by joining seven straight lines.
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  • Octagon:It is an eight-sided figure. It is made by joining eight straight lines.
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  • Nonagon:It is a nine-sided figure. It is made by joining nine straight lines.
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  • Decagon:It is a ten-sided figure. It is made by joining ten straight lines.
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New words:

A figure which has 3 or more sides is called polygon.

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