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Area of Irregular Figures on Graphs

To find the area of complex figures, count only completely filled squares or squares more than half-filled.

For example, let's find the area of the figure given below.

1 a

To find the area of this figure, count the completely filled and more than half-filled squares.

 

1 b

 

We observe that the number of completely filled and more than half-filled squares is 10.

So, the area of the given figure is 10 square units.
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Help

The correct answer is

Remember :

The smallest number is the one that comes first while counting.

Solution :

To arrange the given numbers in order from smallest to greatest, find the smallest number among all the given numbers.

21,27,23

21 is the smallest number.