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Question

There are 900 creatures in a zoo as per list given below:
Beast animals Other land animals Birds Water animals Reptiles
150 400 175 125 50

Represent the above data by a pie chart.

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Solution

Total number of creatures=900Central angle of each component=number of creatures in each typetotal number of creatures×360°Calculation of central angles
Creatures Number of creatures Central angle
Beast animals 150 60°
Other land animals 400 160°
Birds 175 70°
Water animals 125 50°
Reptiles 50 20°







Construction of pie chartSteps 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 60°, 160°, 70°, 50° and 20°.4. Shade the sectors so obtained differently and label each one of them.Thus, we obtain the required pie chart as shown in the figure below.


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