Which type of triangle will always have a perpendicular bisector that is also an angle bisector? a. right b. scalene c. obtuse d. equilateral

D equilateral
   The perpendicular bisectors are angle bisectors in an equilateral triangle since all sides and angles are the same in an equilateral triangle.The angle bisectors of an equilateral triangle form a 90 degree angle with the opposite side and perfectly bisects that opposite side.