The image shows that it is surrounded by four equilateral triangles and is equal to the regular tetrahedron of the geometry, vintage line drawing or engraving illustration.

The image shows that it is surrounded by four equilateral triangles and is equal to the regular tetrahedron of the geometry, vintage line drawing or engraving illustration. - 132954024

類似的圖片 (向量圖像,SVG與EPS)

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