One angle in an obtuse isosceles triangle measures 40°. What are the measures of the other two angles?

True or false look at the picture pls : /

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

If value of cos330° is √3/2 then find tan165°.