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    4. how do you find the diameter of a circle?
    how do you find the diameter of a circle?

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    0  Views: 392 Answers: 2 Posted: 12 years ago
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      The distance around a circle is called its circumference. The distance across a circle through its center is called its diameter. We use the Greek letter (pronounced Pi) to represent the ratio of the circumference of a circle to the diameter. In the last lesson, we learned that the formula for circumference of a circle is: . For simplicity, we use = 3.14. We know from the last lesson that the diameter of a circle is twice as long as the radius. This relationship is expressed in the following formula: .

      12 years ago. Rating: 1
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        By measuring the distance across the circle


         

        12 years ago. Rating: 1
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