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प्रश्न
Find the square of the following number by visual method:
505
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उत्तर
We have:
505 = 500 + 5
Let us draw a square having side 505 units. Let us split it into 500 units and 5 units.
The sum of the areas of these four parts is the square of 505. Thus, the square of 505 is 255025.
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