<span>Vladimir Lenin, also called Vladimir Ilich Lenin, original name Vladimir Ilich Ulyanov (born April 10 [April 22, New Style], 1870, Simbirsk, Russia—died January 21, 1924, Gorki [later Gorki Leninskiye], near Moscow), founder of the Russian Communist Party (Bolsheviks), inspirer and leader of the Bolshevik Revolution ( ...</span><span>Sep 30, 2016</span>
Perpendicular lines<span> are two or more lines that intersect at a 90-degree angle, like the two lines drawn on this graph, and the x and y axes that orient them.</span>
