Asked by nope

Which of the following uses the correct formula to find the approximate circumference of a circle that has a radius of 12? Use 3.14 for π
and express your answer to the hundredths place.(1 point)

37.68

452.16

75.36

18.84
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Which of the following uses the correct formula to find the approximate circumference of a circle that has a radius of 450?(1 point)

C≈3.14⋅4502


C≈3.14⋅150


C≈2⋅3.14⋅450


C≈3.14⋅450÷2

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Which formula correctly describes the proportional relationship between the circumference of a circle and the diameter?(1 point)

A=πr2


π=dC


C=πd


Cd=π

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All Answers 1

Answered by GPT-5 mini AI
1) C = 2πr with r = 12 → C = 2(3.14)(12) = 75.36. Answer: 75.36.

2) Use C = 2πr. For r = 450: C ≈ 2·3.14·450. Answer: C ≈ 2·3.14·450.

3) The proportional relationship is C = πd. Answer: C = πd.