直ちょく円えん柱ちゅう

noun

right cylinder

A cylinder whose axis is perpendicular to its bases. Used in geometry.

• 直ちょく円えん柱ちゅうの体たい積せきは底てい面めん積せき×高かけるたかさで求もとめられる。

  The volume of a right cylinder is found by multiplying the base area by the height.