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Why does our environment seem flat when the Earth is round?Since the ancient Greeks made observations of the Moon and the sky, scientists have known that the Earth is a sphere. We've all seen magnificent images of Earth from space, some photographed by ...
Most trigonometry students look at triangles on a flat surface. However, people from ancient astronomers to modern navigators calculated the arc lengths and angles of triangles on a sphere. They used ...
Most trigonometry students look at triangles on a flat surface. However, people from ancient astronomers to modern navigators calculated the arc lengths and angles of triangles on a sphere. They used ...
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