Employees of a company have been categorized according to their religions as given below:
|Number of workers||420||300||225||105||1080|
Draw a pie-chart to represent the above information.
Central angle of a component = (component value / sum of component values 360ο)
Here, total number of workers = 1050
Thus, the central angle for each component can be calculated as follows:
|Religion||Number of workers||Sector angle|
|Hindu||420||420/1050360 = 144|
|Muslim||300||300/1050360 = 102.9|
|Sikh||225||225/1050360 = 77.14|
|Christian||105||105/1050360 = 36|
Note: The total number of workers is 1050, not 1080.
Now, the pie chat that represents the given data can be constructed by following the steps below:
Step 1 : Draw circle of an appropriate radius.
Step 2 : Draw a vertical radius of the circle drawn in step 1.
Step 3 : Choose the largest central angle. Here, the largest central angle is 144o. Draw a sector with the central angle 144o in such a way that one of its radii coincides with the radius drawn in step 2 and another radius is in its counter clockwise direction.
Step 4 : Construct other sectors representing other items in the clockwise direction in the descending order of magnitudes of their central angles.
Step 5 : Shade the sectors with different colours and label them as shown as in the figure below.
Video Tutorials For All Subjects
- Circle Graph Or Pie Chart - Drawing Pie Charts