Tushe Goma

- Base Ten Cube Box 10x10x10cm 1pc.– Base Ten Board 10x10x1cm 9pcs.– Base Ten Rod 10x1x1cm 9pcs-- Base Ten Unit 1x1x1cm 10 inji mai kwakwalwa

Jikin yana kewaye da fuskoki. Akwai shimfidar shimfidu da shimfidu masu lankwasa. Misali, wani jirgin ruwa mai kaho yana zagaye da jirage shida; wani yanki yana kewaye da mai lankwasa; wani silinda yana kewaye da daddaɗaɗɗen ƙasa da jirage biyu. Dangane da halayen babban sifar jikin-farfajiyar, ana iya raba jiki zuwa gida biyu:
Nau'in farko shine juzu'in yanayin yanayin juzu'i wanda yake da juzu'i a ciki, wanda ake kira daskararren tsayayyen farji, kamar silinda da bangarori.
Rukuni na biyu shine lissafin jirgin sama wanda ke kewaye da jirage, ma'ana, polyhedron wanda ke kewaye da wasu polygons na jirgin sama, kamar su prisms da cubes.