### Possible Answer

Hi. The formula for finding the circumference is Diameter x PI. All you have to do is to time 10 cm by PI. When multiplying by 10, you move the comme one place to the right. - read more

The diameter is not given to you in the question but we know that radius is half of diameter. So 10 times 2=20. Diameter =20. Now you just multiply pi and the diameter ... What is the perimeter of a circle of radius 10.5 cm? If a circle has a diameter of 10 cm, then what is the ... - read more

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