The following table shows the percentages of buyers of four different brands of bathing soaps.


Brand



A



B



C



D



Percentage of buyers



20%



40%



25%



15%



Represent the above data by a pie chart.


Total Students = (20 + 40 + 25 + 15) = 100


Central Angle of Component = × 3600


Calculation of central angles


Brand



Percentage of Buyers



Central Angle



A



20



= 72o



B



40



= 144o



C



25



= 90o



D



15



= 54o




10