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17 May, 14:02

A small pizza has a diameter of 21 cm. What is the approximate circumference of the pizza? Use π = 3.14.

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Answers (2)
  1. 17 May, 14:19
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    Circumference=πd

    =3.14x21

    =65.94cm²
  2. 17 May, 14:30
    0
    The formula for circumference of a circle is πd. Substitute the diameter and the rounded value of π in so you have 21*3.14.

    Multiply to get 65.94 cm, which is the approximate circumference of the pizza.
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