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The circumference of the circle is $\"\"$

The circumference of a circle formula is $\"\"$

$\"\"$ (Substitute 25 for C and 3.14 for $\"\"$ )

$\"\"$ (Multiply: $\"\"$ )

$\"\"$ (Divide each side by 6.28)

$\"\"$ (Cancel common terms)

$\"\"$ cm (Divide: $\"\"$ )

$\"\"$ m (Rounded to nearest whole number) $\"\"$

The diameter of a circle is twice to its radius, $\"\"$ .

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$\"\"$ cm (Rounded to nearest whole number)

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The radius and diameter of the circle are 4 cm and 8 cm respectively.