What generalization can you make about the size of the black population in the North in 1860?

6 units. ab and lo are congruent sides, and if ab= 6 units, then lo would be the same.

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copernicus finished the first manuscript of his book, "de revolutionibus orbium coelestium" ("on the revolutions of the heavenly spheres") in 1532. in it, copernicus established that the planets orbited the sun rather than the earth. he laid out his model of the solar system and the path of the planets.