Following data gives the break up of the cost of production of a book:
Printing | Paper | Binding charges | Advertisement | Royalty | Miscellaneous |
30% | 15% | 15% | 20% | 10% | 15% |
Draw a pie- diagram depicting the above information.
We know:
Central angle of a component $=\left(\right.$ component value $/$ sum of component values $\left.\times 360^{\circ}\right)$
Here, total expenditures = 105%
Thus, the central angle for each component can be calculated as follows:
Total : 105%
Now, the pie chat representing 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 102.9o. Draw a sector with the central angle 102.9o 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 the other items in the clockwise sense in descending order of magnitudes of their central angles.
Step 5 : Shade the sectors with different colours and label them, as shown as in figure below.