Given a circle with endpoints of a diameter at-10 -1i and 6 + 11i, answer the questions below. 1. The center of the circle is at -2 +5i
2. The radius of the circle has a length of ___ units.

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.