The circumference of a circle is 62 .80 cm is equal to 3.14 find its diameter
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circumference of the circle =2πr
62.80 =2×3.14×r
62.80=6.38 ×r
r =62.80/6.38
=9.843cm
diameter = r× 2 = 2×9.843
= 19.686 cm
= 20 cm
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