Question

enter the correct answer. calculate the circumference. formula: c = 2πr use 3.14 for π. c = ? cm round to the nearest tenth. (with a circle diagram showing radius 4 cm)

Explanation:

Step1: Substitute the values into the formula

Given \( r = 4\) cm and \(\pi=3.14\), substitute into \(C = 2\pi r\).
\(C=2\times3.14\times4\)

Step2: Calculate the product

First, \(2\times4 = 8\), then \(8\times3.14\).
\(8\times3.14=25.12\)

Step3: Round to the nearest tenth

\(25.12\approx25.1\) (since the digit in the hundredth place is \(2<5\))

Answer:

\(25.1\)