The radius of a circle is 13.5 m . What is the circumference of the circle? Give your answer to 1 d.p.

To find the circumference of a circle, you can use the formula \(C = 2\pi r\), where \(r\) is the radius. With a radius of 13.5 m, the calculation becomes \(C = 2 \times \pi \times 13.5\). This results in approximately \(C \approx 84.8\) m when rounded to one decimal place. Now, on to something interesting! Do you know that the circle has been a fundamental shape in various fields since ancient times? It appears in nature, art, and architecture, symbolizing unity and infinity. Great civilizations, like the Babylonians and Greeks, studied circles extensively, leading to fascinating discoveries in geometry and mathematics! Also, if you're ever confused about the formulas or calculations, a common mistake is forgetting to use the correct value for π (pi). While 3.14 is a good approximation, using 3.14159 will give you a more accurate result. Don’t forget to check your calculator settings if you're using one, as some may default to different values for π!