9514 1404 393
Answer:
282.6 cm
Step-by-step explanation:
The circumference is given by the formula ...
C = 2πr
C = 2(3.14)(45 cm) ≈ 282.6 cm
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Additional comment
The circumference is also pi times the diameter. In this case, that is (very) approximately 3 × 90 cm ≈ 270 cm. This is sufficiently close to the correct answer to allow you to eliminate the choices that make no sense.
