Start study of reflection from the glass and shapes a triangle when doing experiments and thus interest in the triangular shape. Because we interested in it, regardless of the angle of view, which still shapes and in the aspects of architecture, it is the shape that is strong as well with interest in refraction of light inside the material using a triangle shape with a metallic echo to increase even more. And it has brought development of triangular shape makes the size and length to achieve the different dimensions of a different light. After that complete the triangle shape with applied to the facade of the building, causing the reflection from the Sun with different time intervals to reflect views that are unique.