三さん角かく測そく量りょう

noun

triangulation

Technical term in surveying and geometry; refers to determining positions by forming triangles from known points.

• 三さん角かく測そく量りょうは地ち図ず作さく成せいの基き本ほん技ぎ術じゅつです。

  Triangulation is a fundamental technique in mapmaking.