A jeweler makes a pair of earrings by cutting two sectors from a silver circular disk. Determine, to the nearest milligram, how many milligrams the silver wedge for each earring weighs if the weight of the silver disk is 2.8 g.
The pie chart represents how a farm, which has an area of 976 feddans, is planted with four different fruits. How big, in feddans, is the area represented by yellow?
The given figure shows the grades of students in an exam. What is the central angle of the section that represents students who got a grade of excellent?