Draw and label diagrams that show these two methods for calculating 19 * 50. First find 10x50 and then add 9x50.
First find 20x50 and then take away 50​

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle? by using compass take the measures of angle and draw the same arc according to it.