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.
Rectangle. A rectangle is a parallelogram with 4 right angles. A rectangle has the following rules: (1) All the rules of a parallelogram. (2) Four right angles. Remember that a right angle measures 90 degrees. (3) Diagonals which are congruent (they have the same length). rhombus has the following rules: (1) All the rules of a parallelogram. (2) Four sides that have the same length. (3) Diagonals that intersect at right angles. (4) Diagonals that bisect opposite pairs of angles. Sample: Given that ABCD is a rhombus and the measure of angle D = 60 degrees.