| 摘要 |
The present invention relates to a dozen tangram play set and, more specifically, relates to a dozen tangram play set, which can relatively express the shape to be expressed in a precise manner by having a regular triangle as a base frame. The dozen tangram ply set enables to be divided into both sides by 30° with respect to any one apex (A) of apexes (A, B, C) of the regular triangle with the fixed size, and to be divided into right-angled triangles (ΔABA1 and ΔACA1) with respect to a first cutting line (L1A), which vertically cuts the side (line BC) corresponding to the apex (A). |
