Given below is the result of an annual examination of a class, showing the percentage of students in each category.


First division



Second division



Third division



Failed



25%



45%



20%



10%



Represent the above data by a pie chart.

Total Students = (25 + 45 + 20 + 10) = 100


Central Angle of Component = × 3600


Calculation of central angles


Category



Students
(in percentage)



Central Angle



First Division



25



= 90o



Second Division



45



= 162o



First Division



20



= 72o



Failed



10



= 36o




9