The Formula to Find the Circumference of a Circle

The formula to find the circumference of a circle is given by: [ C = 2\pi r ] where ( C ) is the circumference and ( r ) is the radius of the circle.

This formula is vital when studying properties of circles in grade 9 mathematics. Understanding the relationship between the circumference and the radius is crucial for solving various geometry problems.

In South Africa, this concept is typically covered in the grade 9 math curriculum and is an essential fundamental for further studies in geometry.

Remember, the circumference is the total distance around the circle!