oHe married Varvara Alexeivna Moisieva and together they had 15 children!
A Russian mathematician named Nikolai Ivanovich Lobachevsky is the man credited with inventing hyperbolic geometry. Nikolai lived from 1792 to 1856.
Bernhard Riemann Nikolai Lobachevsky
Yes, this statement is true. However, it is controversial between Euclid and Lobachevsky. In Euclid, this is alwaystrue. In Lobachevsky, however, this could be both true and untrue. Did this help?
Basic Geometric Ideas: Geometry is the mathematics of space,two dimensional plane and three dimensional solid figures.Geometry is divided into pure Euclid elements of plane and solid as propunded by Greek mathematicians like Thales,Pythogoras and Euclid,while analytical/coordinate uses algebraic methods propounded by Rene Descartes.The non Euclidean methods devised in development of theory of relativity and atomic theory by Karl Gauss, Georg Riemann and Nikolai Lobachevsky.
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