To find the length of the steel ring needed to fit around a pipe, you need to calculate the circumference of the pipe. The formula for the circumference \( C \) of a circle is:
\[ C = \pi \times d \]
where \( d \) is the diameter of the circle.
In this case, the diameter of the pipe is 5 centimeters. Using \( \pi \) (approximately 3.14), we can calculate the circumference:
\[ C = \pi \times 5 , \text{cm} \approx 3.14 \times 5 , \text{cm} \approx 15.7 , \text{cm} \]
Thus, the steel ring needs to be approximately 15.7 centimeters long to fit around the pipe.
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