Question

The monthly income of family is ₹ 28800. The monthly expenditure of the family on various items is given below.

Item	Rent	Food	Clothing	Education	Saving
Expenditure (in ₹)	8000	10800	5600	3600	800

Represent the above data by a pie chart.

Answer 1

Monthly income of the family = ₹28,800

$\mathrm{Central}\mathrm{angle}\mathrm{for}\mathrm{each}\mathrm{item}=\left(\frac{\mathrm{Expenditure}\mathrm{per}\mathrm{month}\mathrm{on}\mathrm{various}\mathrm{items}}{\mathrm{Monthly}\mathrm{income}}\times 360\right)°$

Calculation of central angles

Items	Expenditure(in ₹)	Central angle
Rent	8000	100º
Food	10800	135º
Clothing	5600	70º
Education	3600	45º
Savings	800	10º

Construction of pie chart
Steps of construction
1. Draw a circle of any convenient radius.
2. Draw a horizontal radius of this circle.
3. Draw sectors whose central angles are 100º, 135º, 70º, 45º and 10º.
4. Shade the sectors so obtained differently and label each one of them.
Thus, the pie chart is obtained as follows.