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Data Handling III (Pictorial Representation of Data as Pie Charts or Circle Graphs) Exercise 25.1 Question: 1 The number of hours, spent by a school boy on different activities in a working day, is given below:
The number of hours, spent by a school boy on different activities in a working day, is given below:
Present the information in the form of a pie-chart.
We know:
Central angle of a component = (component value / sum of component values × 360) Here, total number of hours = 24
Thus, the central angle for each component can be calculated as follows:
Now, the pie chat that represents the given data can be constructed by following the steps given below:
Step 1: Draw a 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 120°. Draw a sector with the central angle 120° 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 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.
Employees of a company have been categorized according to their religions as give
Draw a pie-chart to represent the above information.
Central angle of a component = (component value / sum of component values 3
Here, total number of workers = 1050
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.
In one day the sales (in rupees) of different items of a baker's shop are given below:
Draw a pie-chart representing the above sales.
The following data shows the expenditure of a person on different items during a month. Represent the data by a pie-chart.
The percentages of various categories of workers in a state are given in the following table.
Present the information in the form a pie-chart.
The following table shows the expenditure incurred by a publisher in publishing a book:
Present the above data in the form of a pie-chart.
Percentage of the different products of a village in a particular district are given below. Draw a pie-chart representing this information.
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