立りっ体たい幾き何か学がく

noun

solid geometry

Mathematical term for the study of three-dimensional figures and their properties.

• 立りっ体たい幾き何か学がくでは、球きゅうや立りっ方ぽう体たいの体たい積せきを計けい算さんする。

  In solid geometry, we calculate the volume of spheres and cubes.