Pie Or Circular Diagrams

What do you mean by a circualr diagram? Present the dat on the expenditure of a labour family in the form of a circular diagram:

In a tree plantation programme, the number of trees planted by students of different classes is given in the following table. Draw a pie diagram showing the information.

In a tree plantation programme, the number of trees planted by students of different classes is given in the following table. Draw a pie diagram showing the information.

The following table shows the percentage of vehicles passing a signal. Find out the measures of the central angles to show the information by a pie diagram. Hence draw the pie diagram.

Which one of the following is not correct ? The proportion of various items in a pie diagram is proportional to the