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22 July, 00:37

Find the

a

circle

circumference of

whose

area is 616 cm

+4
Answers (2)
  1. 22 July, 00:54
    0
    Answer: 87.96 cm

    Step-by-step explanation:

    Radius = √a/π

    =√616 / π = 14 cm

    Circumference = 2πr

    = 2 x π x 14

    = 87.96 cm
  2. 22 July, 01:38
    0
    Answer: 88 cm

    Step-by-step explanation:

    The area of a circle is A=πr². Since we know the area, we can use find the radius, and use the radius to find the circumference,

    616=πr²

    196=r²

    r=14

    Now that we have the radius, we can use it to find the circumference. The formula for circumference is C=2πr.

    C=2π (14)

    C=28π

    C=88 cm
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