Which among the following shapes is NOT a polygon?
A
1
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B
2
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C
3
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D
4
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Solution
The correct option is C3 A figure is considered polygon if it fits into following properties:
1) Closed and planar shape
2) made of straight sides
3) Only one inside area and only one outside area.
Figure 1, 2 and 4 satisfies all the above properties, hence they can be considered as polygons.
However, figure 3 is not a closed shape, so it is NOT a polygon.