Question

How many natural no. Lir between 9 square and 10 square?

Answer 1

Answer

19 numbers

Step-by-step explanation:

multiply the small or th first numbwe by 2

9 sq. and 10 sq.

Therefore,

9*2=18

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Answer 2

$Number \: of \: natural \: numbers \:lie \: between \\n^{2}\: and \: (n+1)^{2} = 2n$

$Here , n = 9 \: and \: n + 1 = 9 + 1 = 10$

$Now ,\\Number \: of \: natural \: numbers \:lie \: between \\9^{2}\: and \: 10^{2} = \\2\times 9 \\= 18$

Therefore.,

$Answer : 18$

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