What is the circumference of a circle with radius 1 to the nearest hundredth?

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Prepare for the AMSOC 26-003 Module A Test. Utilize flashcards and multiple choice questions with hints and explanations. Ace your exam!

Multiple Choice

What is the circumference of a circle with radius 1 to the nearest hundredth?

Explanation:
Circumference is found with C = 2πr. With a radius of 1, C = 2π(1) = 2π ≈ 6.28318. Rounding to the nearest hundredth gives 6.28. So the circumference is about 6.28 units. The slight differences like 6.30 or 6.20 come from rounding π differently or at a different precision, whereas using the standard value of π gives 6.28 when rounded to two decimals.

Circumference is found with C = 2πr. With a radius of 1, C = 2π(1) = 2π ≈ 6.28318. Rounding to the nearest hundredth gives 6.28. So the circumference is about 6.28 units. The slight differences like 6.30 or 6.20 come from rounding π differently or at a different precision, whereas using the standard value of π gives 6.28 when rounded to two decimals.

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