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Total expenditure on different items during a month
= ₹ (2700 + 1800 + 2400 + 1500 + 2400) = ₹10800
Expenditure on different items during a month is converted into component parts of 360°
using the formula:
Central angle for an item = ( Expenditure on that item ÷ Total expenditure x 360 ) °
calculation of central angles :
RENT :- (2700 / 10800 × 360) ° = 90 °
EDUCATION:-(1800 / 10800 × 360)° = 60°
FOOD :- (2400 / 10800 × 360) ° = 80°
CLOTHING :- (1500 / 10800 × 360) ° = 50°
OTHERS :- (2400 / 10800 × 360) ° = 80°
Now we draw the pie chart using the following steps of construction:
1. Draw a circle of any convenient radius.
2. Using the protractor, draw sectors corresponding to the central angles calculated in the table above.
3. Shade the sectors so obtained differently.
4. Label each sector.
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