Question

the radius of a circle is 1.1 cm. find the circumference to the nearest tenth.
answer attempt 1 out of 2
c = cm submit answer

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 into the formula

Given \(r = 1.1\) cm, so \(C=2\times\pi\times1.1\).

Step3: Calculate the value

\(C = 2\times3.14\times1.1=6.908\) cm.

Step4: Round to the nearest tenth

Rounding \(6.908\) to the nearest tenth: look at the hundredth digit (\(0\)). Since \(0<5\), we keep the tenth digit as is. So \(C\approx6.9\) cm.

Answer:

\(6.9\)