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.
Because the interior angles of a quadrilateral is 360Â° , we know that the remaining two angles must have a sum of 180Â° (because 360-180=180). Opposite angles of parallelograms are congruent, which means that each other the missing angles must have a measure of 90Â° (since 180Ã·2=90). This tells us that there are actually four right angles in Parallelogram C, so we know that it is a square (and a rhombus).