Question

find the diameter of the circle whose circumference is 314​

Answer 1

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Here's your answer...❤❤

Circumference of circle = 2πr

314 = 2 × 3.14 × r

314 = 2 × 314 × r/100

31400 = 2 × 314 × r

100 = 2 × r

100/2 = r

50 cm = r

Hope it helps you...

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Answer 2

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$circumference = 2\pi r \\ \\ 314 = 2 \times \frac{22}{7} \times r \\ \\ \frac{314 \times 7}{2 \times 22} = r \\ \\ \frac{2198}{44} = r \\ \\ 49.95\:cm = r \\ \\ we \: \: know \: \: that \: \: d = 2 r \\ d = 2(49.95) \\ d = 99.9\:cm$