Which triangle is similar to triangle EAD using the Pieces of Right Triangles Similarity Theorem? Triangle CDE has measure of angle CDE equal to 90 degrees. A is a point on the hypotenuse EC such that the segment DA is perpendicular to EC. B is a point outside the triangle on the right of C so that triangle ABC has the measure of angle ABC equal to 90 degrees. Triangle BAC Triangle DAC Triangle CAB Triangle ACD