Question

the diameter of a circle is 134 cm. find the circumference to the nearest whole number.

Explanation:

Step1: Recall the formula for circumference

The formula for the circumference \(C\) of a circle is \(C=\pi d\), where \(d\) is the diameter.

Step2: Substitute the value of diameter

Given \(d = 134\) cm. Substitute into the formula: \(C=\pi\times134\).
Using \(\pi\approx3.14159\), then \(C = 3.14159\times134\).

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Step3: Round to the nearest whole number

Rounding \(421.07306\) to the nearest whole number. Since the decimal part \(0.07306\lt0.5\), we round down.

Answer:

\(421\) cm