周しゅう囲い長ちょう

noun

perimeter; circumference

Technical term used in geometry and measurement; refers to the total length around a closed shape.

• この長ちょう方ほう形けいの周しゅう囲い長ちょうを計けい算さんしてください。

  Please calculate the perimeter of this rectangle.

• 円えんの周しゅう囲い長ちょうは直ちょっ径けいに円えん周しゅう率りつをかけて求もとめます。

  The circumference of a circle is found by multiplying the diameter by pi.