Question

Represent the following data with the help of pie diagram :

Items	Wheat	Rice	Tea
production (in metric Tons)	3260	1840	900

Answer 1

 Here, total production = 6000 metric tons

So, 

The central angle = \(\frac{component\,value}{6000}\times360^\circ\)

Hence, 

the central angle for each activity will be calculated as follows

Item	Production (in metric tons)	Sector angle (degree)
Wheat	3260	3260/6000 x 360 = 195.6
Rice	1840	1840/6000 x 360 = 110.4
tea	900	900/60000 x 360 = 54

Steps for construction of representation of data in pie chart 

Step 1: Draw the circle of appropriate radius. 

Step 2 : Choose a radius anywhere inside the circle. 

Step 3 : Now draw a sector of calculated component’s central angle. It is always preferable to choose component with largest central angle first and then continue in descending order of magnitude of their central angle. 

Step 4: After drawing sectors, shade them with different colours and label them as shown in the figure.