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MATHEMATICS�CLASS III

SHAPES AND DESIGNS

COMPETENCY-UNDERSTANDING BASIC CONCEPT

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SOME IMPORTANT TERMS

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  • OPEN FIGURES
  • CLOSED FIGURES
  • EDGES
  • CORNERS

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Edge

  • Plain
  • curved

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CLOSED FIGURE

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OPEN FIGURE

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BASIC SHAPES

  • CIRCLE-

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  • CLOSED FIGURE

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  • NO CORNERS

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  • NO EDGES

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CIRCULAR THINGS

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TRIANGLE

  • A CLOSED FIGURE

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  • 3 CORNERS

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  • 3 EDGES

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TRIANGULAR THINGS

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RECTANGLE

  • CLOSED FIGURE

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  • 4 CORNERS

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  • 4 EDGES

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RECTANGULAR THINGS

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SQUARE�

A CLOSED FIGURE

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4 CORNERS

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4 EDGES

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SQUARE THINGS