The cylinder has a radius of 2.5 m . Calculate the perimeter of the circle, giving your answer correct to 2 decimal places.

To find the perimeter (circumference) of a circle, you can use the formula \( C = 2\pi r \), where \( r \) is the radius. Here, the radius is 2.5 m. Substituting the value, you get \( C = 2 \times \pi \times 2.5 \approx 15.71 \) m when rounded to two decimal places. So, the perimeter of the circle is approximately 15.71 meters. Now, isn’t it fascinating that the only measure needed to calculate the entire distance around a circle is its radius? Circles are all about symmetry, and this radial relationship helps us not only in math but also in engineering, architecture, and art. Whether you’re designing a roundabout or a beautiful piece of pottery, understanding this relationship is key!