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प्रश्न
The diameter of a circle is 5.6 cm. Find its circumference.
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उत्तर
Diameter = 5.6 cm
Radius = `"diameter"/2`
= `5.6/2`
= 2.8 cm
Circumference = 2πr
= `2 xx 22/7 xx 2.8`
= 17.6 cm
Thus, the circumference of the circle is 17.6 cm.
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