Kusudama – Tetrahiron
Mae hyn yn kusudama, Tetrahiron, yn cynnwys gyda chyfanswm o 6 rectangular sheet of paper, the rectangular sheet must be in the 2:1 ratio, in other words, you can just can an square sheet in half. The finished kusudama is a geometric figure, which can be used as a decoration or used in school as [...]
















