A circle has a radius of 7cm. Which of these is closest to its circumference?

Question

A circle has a radius of 7cm. Which of these is closest to its circumference?

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Mộc Miên 4 years 2021-08-10T13:21:53+00:00 2 Answers 6 views 0

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  1. thachthao
    0
    2021-08-10T13:23:33+00:00
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    Answer:

    Approximately 22 or 7πcm

    Step-by-step explanation:

    The ratio between the circumference of a circle and its diameter is π. We commonly write c=2πr, using the radius instead and doubling.

    In the given example, we are told that the diameter is

    7 cm. So using the common approximation π≈\frac{22}{7} we find that the circumference is approximate:

    \frac{22}{7} * 7cm= 22 cm

  2. thuthuy
    0
    2021-08-10T13:23:50+00:00
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    Answer:

    You didn’t list the answers but it’s 43.98 so close to 44 I’m guessing

    Step-by-step explanation:

    circumference=2*pi*r

    2*3.14*7=about 44

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