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प्रश्न
What do you understand by a plane closed figure?
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उत्तर
Any geometrical plane figure bounded by lines (straight or curved) in a plane is called a plane closed figure.
Each of the following figures is a plane closed figure.
(i)
(ii)
(iii)
(iv)
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| Shapes | Perimeter |
(A)  |
(i) 10 |
(B)  |
(ii) 18 |
(C)  |
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(D)  |
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