Which formula would be used to find the measure of angle 1?

How do i make someone brainliest? (if you answer me, i might be able to make you brainliest! )

Circle d circumscribes abc and abe. which statements about the triangles are true? statement i: the perpendicular bisectors of abc intersect at the same point as those of abe. statement ii: the distance from c to d is the same as the distance from d to e. statement iii: bisects cde. statement iv: the angle bisectors of abc intersect at the same point as those of abe. a. i only b. i and ii c. ii and iv d. i and iii e. iii and iv

Kira looked through online census information to determine the overage number of people living in the homes in her city what is true about kira's data collection?