| word | circumference |
|---|---|
| definition | (1) The perimeter or boundary of a circle. (2) The outer boundary or surface of a shape or object. |
| eg_sentence | To calculate the circumference of a circle, multiply its diameter by 3.1416. |
| explanation | Attempts have been made to measure the circumference of the earth since the time of Aristotle. The calculation that Columbus was relying on led him to think he could reach China by sailing west more quickly than by sailing east. But that measurement had calculated the earth's circumference as about a quarter too small, and the rest is history. Columbus wasn't the only one who got it wrong; many later attempts continued to produce different measurements for the earth's circumference—even though the Greeks had calculated it correctly way back in the 3rd century B.C |
| IPA | ˌsərˈkəmfrəns |
Tags: mwvb::unit:29, mwvb::unit:29:word, mwvb::word, mwvb::word-cloze, mwvb::word-reverse, obsidian_to_anki
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