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Dmitriy789 [7]
3 years ago
7

If the area of a circle is

Mathematics
1 answer:
ozzi3 years ago
5 0

Answer:

Since area =7.7

area =  \frac{22}{7}  {(r)}^{2}  \\  {(r)}^{2}  = 2.45 \\ r = 1.57

Then the circumference is

c = 2pi\times r \\  = 2 \times 3.14 \times 1.57 \\  = 9.859

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