Question

the diameter of a circle is 134 cm. find the circumference to the nearest whole number. answer attempt 2 out of 2 c = cm

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 given diameter into the formula

Given \(d = 134\) cm. Substitute into \(C=\pi d\), so \(C=\pi\times134\).
Using \(\pi\approx3.14159\), then \(C = 3.14159\times134\).
Calculate \(3.14159\times134=420.97306\).

Step3: Round to the nearest whole number

Rounding \(420.97306\) to the nearest whole number. Since the decimal part \(0.97306>0.5\), we round up.

Answer:

\(421\)