Question

collect data of major river systems in india on the basis of pollution level represent it through pie chart

Answer 1

Collect pollution level of five rivers. Let it be x1,x2,x3,x4nd x5. Multiply xi, (i is equal to 1 to 5) with 360/sum of xi. To make it simple let me explain add all the collected figure which is equal to 360degree. Share of each in degree is drawn at the centre of a circle consecutively and leveled as the name of the river. A pie chart needs to have a heading. If you want to colour each section it need to be indicated