Naomi makes silver jewelry.For one style of earrings,she cut

Naomi makes silver jewelry.For one style of earrings,she cuts wedges from a silver disk,as shown in the figure above.Each wedge makes a 40° angle at the center of the disk.If the weight of each uncut disk is a unidormly distributed 2.5 grams,how many grams does each wedge weigh.