what is the circumference of a circle of diameter 10 cm ( take π=3.14
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Radius = ½ × diameter
➡️ ½ × 10 cm
➡️ 5 cm.
circumference = 2πr
➡️ 2 × 3.14 × 5
➡️ 10 × 3.14
➡️ 31.4 cm
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