Question

calculate the circumference.
formula:
c = πd
use 3.14 for π.
c = ? cm
round to the nearest tenth.

Explanation:

Step1: Substitute the values into the formula

Given the formula \( C=\pi d \), where \( d = 11\) cm and \( \pi=3.14\).
So, \( C = 3.14\times11\).

Step2: Calculate the product

\(3.14\times11=34.54\).

Step3: Round to the nearest tenth

Looking at the hundredth digit (4), since \(4\lt5\), we keep the tenth digit as it is. So \(34.54\approx34.5\).

Answer:

\(34.5\)