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Size: 50*50mm 

1 x Small Triangle Disc (Brass)

The triangular disc is a versatile and durable tool made with brass, ensuring it withstands repeated usage. It is an equilateral triangle with lengths of 5 cm or 1.97 inches on each side, making it ideal for measuring and drawing precise shapes and lines. The triangle is designed to evaluate different measurements of the golden ratio.

The centimeter side and the indented horizontal lines of the triangle contain the biggest golden ratio measurements. Similarly, the dotted lines have a slightly reduced ratio, whereas the solid lines are 5 cm shorter than the dotted lines. The four upward-pointing triangular holes display a golden ratio relationship. Likewise, the downward-pointing triangles also exhibit a relationship.

In addition to its angle measuring capabilities, the holes on the triangular disc can also be used as a guide for drawing. This feature is useful for technical or composition drawing, engineering, and architecture.