Mathematics for IGCSE & O level - Mensuration (Section 7 - No. 28)
What is the difference between circumference and perimeter?
They are the same.
Circumference is the perimeter of a circle, perimeter is for other shapes.
Perimeter is the perimeter of a circle, circumference is for other shapes
They are not related.
Explication
Perimeter is for all shapes, and circumference is specific to the circle.