三さん角かく柱ちゅう

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Freq.FrequencyTop 100,000

Meanings

1

noun

triangular prism

A solid geometric shape with two parallel triangular bases and three rectangular sides.

角angle, corner, square

柱pillar, post, cylinder

三さん角かく錐すい
三角錐 is a triangular pyramid (tetrahedron), while 三角柱 is a triangular prism.
四し角かく柱ちゅう
四角柱 is a quadrangular prism; 三角柱 specifically has triangular bases.

Compound of 三角 (triangle) and 柱 (pillar, prism).