A survey of 2294 adults in a certain large country At least 18 in order to conduct a bar reputable polling organization found a 408 have donated blood in the past two years

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.