Alguem pra me ajudar na minha prova de matematica daqui 10 min? 8 ano

What is the distance between the points (2 -3) and (-6 4) on the coordinate plane

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

Which rotation about its center will carry a regular hexagon onto itself