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प्रश्न
The diameter of a circle is 14 cm. If it is doubled, the perimeter of the resulting circle will become ______.
विकल्प
four times
doubled
halved
three times
MCQ
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उत्तर
The diameter of a circle is 14 cm. If it is doubled, the perimeter of the resulting circle will become doubled.
Explanation:
The perimeter (circumference) of a circle is given by \[2\pi r\] (or \[\pi d\]). Since circumference is directly proportional to the diameter, doubling the diameter of the circle will cause its perimeter to be doubled as well.
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