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प्रश्न
Formula used to find the circumference of a circle is
विकल्प
2πr units
πr2 + 2r units
πr2 sq.units
πr3 cu.units
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उत्तर
Formula used to find the circumference of a circle is 2πr units
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In the formula, C = 2πr, ‘r’ refers to
