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22 June, 07:36

A circle has a diameter of 6 cm. What is its area?

18.84 cm 2

37.68 cm 2

28.26 cm 2

9.42 cm 2

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Answers (1)
  1. 22 June, 09:14
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    Hey there, we are going to use two formula's, the first formula is A=πr², and the second formula is d=2r. Now, we can solve for a, A=1/4πd²=1/4*π*6²=28.27433cm², Therefore, the answer is 28.26 cm 2
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