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3 years ago

What is the circumference of this circle? Use π ≈ 3.14. Round your answer to the nearest tenth of a centimeter

1 answer:

3 0

The formula of the circumference of a circle is:

C = 2 * π * r

Since r is not given, I will use all choices to find the radius. Whatever circumference corresponds to the correct radius of the problem, then it is the correct one.

a) 22.0 cm = 2 * 3.14 * r ⇒ r = 22.0 cm / 6.28 ⇒ r =   3.50 cm
b) 69.1 cm = 2 * 3.14 * r ⇒ r = 69.1 cm / 6.28 ⇒ r = 11.00 cm
c) 34.5 cm = 2 * 3.14 * r ⇒ r = 34.5 cm / 6.28 ⇒ r =   5.49 cm
d) 17.3 cm = 2 * 3.14 * r ⇒ r = 17.3 cm / 6.28 ⇒ r =   2.75 cm

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2 years ago

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Answer:

Step-by-step explanation:

Given that Z the set of integers is the universal set and

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4 years ago

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4 years ago

Polly has a very rain number of dollar bills in her purse and no change.She spends half the money on a scarf and gives $1dollar

miss Akunina [59]

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3 years ago

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2 years ago