If fx) is an odd function, which statement about the graph of fx) must be true? A. It has a rotational symmetry about the origin

B. It has a line symmetry about the line y=-x

C. It has a line symmetry about the y-axis

D. It has a line symmetry about the x-axis

The perimeter of △cde is 55 cm. a rhombus dmfn is inscribed in this triangle so that vertices m, f, and n lie on the sides cd , ce , and de respectively. find cd and de if cf=8 cm and ef=12 cm. the answer is not cd=20 and de=15. i have tried that one, it does not work.