find the diameter of a circle whose circumference is 66 metre
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4
its radius is 21\2 and diameter is 21
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circumference = 2π(radius)
66 = 2 × 22/7 × radius
radius = 66×7 / 22×2
radius = 21/2 m
so,
diameter = 2×radius = 2×21/2 = 21 m
66 = 2 × 22/7 × radius
radius = 66×7 / 22×2
radius = 21/2 m
so,
diameter = 2×radius = 2×21/2 = 21 m
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