Euclidean Geometry: The study of geometry on a flat, two-dimensional plane, Parallel lines-lines that never intersect and are always the same distance apart., Here the angles of a triangle always add up to 180 degrees, Spherical Geometry: A type of geometry that takes place on the surface of a sphere, where "lines" are great circles, True parallel lines do not exist because all lines eventually intersect., Here, the angles of a triangle can exceed 180 degrees when added.,

लीडरबोर्ड

दृश्य शैली

विकल्प

टेम्पलेट स्विच करें

ऑटो-सेव पुनःस्थापित करें: ?