Shapes , space , and patterns
Transcript of Shapes , space , and patterns
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SHAPES , SPACE AND PATTERNS
Created by ABHA ARORA
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A CUBOID HAS 8 CORNERS,
12 EDGES
6 FACES
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LINES
LINES CAN BE :
STRAIGHT OR CURVED
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3 TYPES OF STRAIGHT LINES ARE:
VERTICAL HORIZONTAL SLANTING
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VERTICAL
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HORIZONTAL
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SLANTING
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LINES CAN ALSO BE CURVED
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A PICTURE IS MADE USING BOTH TYPES OF LINES
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CLOSED SHAPE
A CLOSED SHAPE THAT DOES NOT CROSS ITSELF IS A SIMPLE CLOSED CURVE.
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EXAMPLE
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MORE EXAMPLES
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SOME CLOSED SHAPES ARE FORMED ONLY WITH STRAIGHT LINES.
THESE ARE CALLED POLYGONS
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EXAMPLES
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EXERCISE
Put a tick mark on the simple closed curves
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Polygon or not
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TYPES OF POLYGONS
A POLYGON IS NAMED ACCORDING TO THE NUMBER OF SIDES IT HAS.
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EXAMPLE
A POLYGON WITH 3 LINE SEGMENTS IS CALLED A TRIANGLE.
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A POLYGON WITH 4 LINE SEGMENTS IS CALLED A QUADRILATERAL.
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A RECTANGLE IS A SPECIAL QUADRILATERAL IN WHICH OPPOSITESIDES ARE OF EQUAL LENGTH
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A SQUARE IS A SPECIAL RECTANGLE IN WHICH ALL 4 SIDES ARE EQUAL.
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SAY WHETHER TRUE OR FALSE:
A) all squares are quadrilateral. B) a triangle is a polygon. C) a polygon is made up of line segments. D) all quadrilaterals are rectangles.
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THE END