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15-11-2015
Mathematics

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write down a number you can square to give an answer bigger than 400 but smaller than 500

Respuesta :

15-11-2015

If you would like to know a number you can square and the answer is bigger than 400 but smaller than 500, you can calculate this using the following step:

20^2 = 400 < 21^2 = 441 < 22^2 = 484 < 500

There are two correct results: 21 and 22.

Answer Link

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