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प्रश्न
Express the truth of the following statements with the help of Venn diagram:
(a) No circles are polygon
(b) If a quadrilateral is rhombus , then it is a parallelogram .
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उत्तर
(a) U : set of all geometrical figures.
A : Set of all circles
B : Set of all polygons,
(b) U : set of all quadrilaterals.
P : Set of all parallelogram
R : Set of all rhombuses.
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