A cuboid has the same volume as a cube with side lengths of 4 cm. It is known that the length of this cuboid is 2.56 cm, and its width and height are equal. What are the width and height of this cuboid?
一个长方体和一个棱长4厘米的正方体的体积相等，已知这个长方体的长是2.56厘米，它的宽和高相等，这个长方体的宽和高都是多少．
<result>5</result>