Abdc is an isosceles trapezoid. given only the choices below, which properties would you use to prove acd ≅ bdc by sss?

the legs are congruent.
the base angles are congruent.
the bases are | |.
the diagonals are congruent.

(they all can be selected)

225/100 of last years cost. write each fraction as a decimal and as a percent

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

Ihave a triangle with a 60 degree angle. lets use d for that angle. what are the values of e and f if d is 60 degrees? and what do you notice about the values of e and f?