Geometry questions. Can you please help me?

Did you go ahead and draw it? You get the sides of the rhombus because they are the hypotenuse of a right triangle with legs 3 and 5 so by Pythagorean, √9+25=√34 which makes 6 which is √36 be the longest side in an isosceles triangle containing the acute angle in the rhombus so that acute angle must be the largest angle in there, so it has to be > 60º which not only eliminates A, but B also. And it can't be D because 118.1 is not acute.