Use the formula: diameter = circumference ÷ π
If the circumference is known, divide it by 3.14159
Formula: d = C / π
Example: if circumference = 31.4, diameter = 31.4 ÷ 3.14159 ≈ 10
Use consistent units for the circumference and diameter
Use the formula: diameter = circumference ÷ π
If the circumference is known, divide it by 3.14159
Formula: d = C / π
Example: if circumference = 31.4, diameter = 31.4 ÷ 3.14159 ≈ 10
Use consistent units for the circumference and diameter