Blacks and mulattos made up at least 19.3 % of the population of Santa Barbara. 1790. Blacks and mulattos constituted nearly 15% of the total San Francisco population and 18.5% of the settlers in Monterey. The population of Baja California included 844 Spanish-speaking persons of whom 183 were mulattos.
The same as the sum of angles of any quadrilateral. The sum of the angles only depends on the number of angles. If you want to visualize the sum of angles of a parallelogram, just draw one out and notice that there are two pairs of complementary angles, so the sum of the angles must be 360â.
A parallelogram is a four-sided shape in which the opposite sides  are parallel.   A â¦ rectangle (and a square) is a four-sided shape in which the  opposite sides are parallel and all corners are 90 degrees. The  corners of a parallelogram can be 90 degrees but can also be  different angles. Therefore, rectangles and squares are subsets of  a parallelogram. 25 people found this useful.