Question

In 1–2 sentences, describe how the lengths of a circle’s circumference and diameter relate to each other

Answer 1

The length of a circle's circumference is always π (pi) times the length of its diameter, which can be expressed with the formula \( C = \pi d \), where \( C \) is the circumference and \( d \) is the diameter. This constant ratio of circumference to diameter defines the mathematical constant π, approximately equal to 3.14159.