Biology homework help

Triangle XYZ is isosceles. The measure of the vertex angle, Y, is twice the measure of a base angle. What is true about triangle XYZ? Check all that apply. Angle Y is a right angle. The measure of angle Z is 45°. The measure of angle X is 36°. The measure of the vertex angle is 72°. The perpendicular bisector of creates two smaller isosceles triangles.