The answer is the Nile River.
Karl marx and his fellow writer Engel believed that revolution should start from below, by proletariat coming together, while Maoism recruited the urban population,red army and students. Marxism did not beleive in violent take over but maoism did, which led to him killing millions of people.
There were many ways in which the Renaissance revolutionized European art and thought, but in general it was through arts and sciences and a rediscovery of the human mind and body.
Two congruent triangles are polygons which have the same angles, number of sides and measurement of the lengths. This means the height and the legs of the triangle has the same measurements. When the two are superimposed to each other, the answer would have to be C