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Question
Which of the following figure given below are polygons?
Which of the following figure given below are polygons?
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Solution
The correct option is B
Concept: Polygons are two-dimensional closed figure made of straight lines with one inside and one outside.
Option(a)
Figure is 3-dimensional having length, breadth and height Hence, it is not a polygon.
Option(b)
Figure is 2-dimensional closed figure made of straight lines with one inside and one outside. Hence, it is a polygon.
Option(c) 
Figure is 2-dimensional closed figure but it has two inside bounded areas. Hence, it is not a polygon.
Option(d)
The figure is open Hence, it is not a polygon.
Option(e)
The figure is 2-dimensional closed figure but it has curved boundaries. Hence, it is not a polygon.
Concept: Polygons are two-dimensional closed figure made of straight lines with one inside and one outside.
Option(a)
Figure is 3-dimensional having length, breadth and height Hence, it is not a polygon.
Option(b)
Figure is 2-dimensional closed figure made of straight lines with one inside and one outside. Hence, it is a polygon.
Option(c)
Figure is 2-dimensional closed figure but it has two inside bounded areas. Hence, it is not a polygon.
Option(d)
The figure is open Hence, it is not a polygon.
Option(e)
The figure is 2-dimensional closed figure but it has curved boundaries. Hence, it is not a polygon.
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