Example Sentences
"The circumference of a circle equals pi times the diameter."
"If a circle has a radius of 5, its circumference is 10π."
Synonyms & Related Terms
Quick Check
Which best describes the meaning of circumference?
Study Tips
To remember circumference, try writing it in a sentence of your own. Connect it to something you already know about mathematics.
Use it in conversation today — saying a word aloud three times helps lock it into long-term memory.