What is the value of x in an isosceles triangle July 8, 2019 16 32 64 128 Find the value of x in an isosceles triangle What is the value of x isosceles triangles Find the value of x in an isosceles triangle calculator Finding the value of x in an isosceles triangle In a right triangle one angle measures x° where sin ° = x 4 5 . what is cos(90° − °) x