Sir Cumference

Sir Cumference is a fictional character often used in educational contexts, particularly in mathematics, to help explain concepts related to circles, geometry, and mathematics in general. The character is typically portrayed as a knight whose adventures revolve around geometric principles. The name "Sir Cumference" is a playful pun on the term "circumference," which refers to the distance around a circle. The character is often featured in a series of children's books that aim to make learning about math fun and engaging.