Math

1.
Use 3.14 for pie to estimate the area of a circle. The diameter is given. Round your answer to the nearest hundredth if necessary. (the diameter is 16.8)
2. Find the missing length. Round to the nearest tenth, if necessary. (7,19)

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asked by Math
  1. 1. r = 8.4
    area = π(8.4)^2 = 221.67 to the nearest hundredth using a proper value of π
    (nobody uses 3.14 anymore, that is so 1960's,
    if you did it would be 221.56 , quite an error)

    #2, - incomplete

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    posted by Reiny
  2. The answer is 221.56 because they didn't want you to use ~ they wanted you to use 3.14. Reiny a lot of people still use 3.14 because they teach it in school.

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    posted by C.P

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