Question

Find the area of a circle having a circumference of 23π units. Round to the nearest tenth.

Answer 1

Answer:

B. 415.5 units2

Step-by-step explanation:

Answer 2

Answer:

$\displaystyle 415,5\:units^2 ≈ A$

Step-by-step explanation:

In the circumference, 27 represents the diameter, and the radius is half the diameter, so take half of it to get 11,5. Then use it in the area formula:

$\displaystyle πr^2 \\ \\ π11,5^2 = 132,25π ≈ 415,4756284 ≈ 415,5$

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