Trilateration

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Notion

Domain

Science and technology

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What Wikipedia says

Trilateration is the use of distances (or "ranges") for determining the unknown position coordinates of a point of interest. When more than three distances are involved, it may also be called multilateration, for emphasis. The point of interest is often around Earth (geopositioning).

Excerpt from the Wikipedia article “Trilateration”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Rossi, Braindrain0000, CC BY-SA 3.0, via Wikimedia Commons.