Hyperbolic geometry or hypercycle, then the triangle has no circumscribed circle. As in spherical and elliptical geometry, in hyperbolic geometry if two triangles are similar, they must be congruent. A special polygon in hyperbolic geometry is the regular apeirogon, a uniform polygon with an infinite number of sides. In Euclidean geometry, the only way to construct such a polygon is to make the side lengths tend to zero and the apeirogon is indistinguishable from a circle, or make the interior angles tend to 180 degrees and the apeirogon approaches a straight line. However, in hyperbolic geometry, a regular apeirogon has sides of
China's Circular Economy Germany and Japan, where they have shaped many of China's policies revolving around the three R's of re-use, reduce, recycle. Japan's Basic "Law for Establishing Promoting the Creation of a Recycling-Oriented Society" and Germany's "Closed Substance Cycle and Waste Management Act" has been the greatest influence on China's circular economy strategies. Japan has been successful influencing whole industries into adopting sustainability strategies, where they view recycling measures as a competitive advantage rather than a liability. China has learned from this by making EIP's and industry-wide recycling initiatives as core functions of their circular economy. Germany has been effective in promoting