Question

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1 a. r = 8 in calculate the circumference of the circle

Explanation:

Step1: Recall the formula for circumference

The formula for the circumference of a circle is \(C = 2\pi r\), where \(r\) is the radius.

Step2: Substitute the given radius

Given \(r = 8\) in. Substitute into the formula: \(C=2\pi\times8\).

Step3: Calculate the result

\(C = 16\pi\approx16\times3.14 = 50.24\) in.

Answer:

The circumference of the circle is approximately \(50.24\) inches.