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Circles, SM-Bank 020

Use a calculator to evaluate \(2\large\pi r\) correct to 1 decimal place, when \(\large r\)\(=2.1\).  (2 marks)

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\(13.2\ (1\ \text{d.p.})\)

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\(2\pi r\) \(=2\times \pi\times 2.1\)
  \(=13.194\dots\)
  \(=13.2\ (1\ \text{d.p.})\)

Filed Under: Circles Tagged With: num-title-ct-core, smc-4841-15-Circumference

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