Hello this is 7th class question and pls answer as soon as possible

1.	Hello this is 7th class question and pls answer as soon as possible
Answer» By PYTHAGORUS THEOREM, ${9}^{2} + {40}^{2} = {x}^{2}$ $81 + 1600 = {x}^{2}$ $1681 = {x}^{2}$ $x = \sqrt{1681}$ $x = 41$

Answer»

By PYTHAGORUS THEOREM,

${9}^{2} + {40}^{2} = {x}^{2}$

$81 + 1600 = {x}^{2}$

$1681 = {x}^{2}$

$x = \sqrt{1681}$

$x = 41$

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Hello this is 7th class question and pls answer as soon as possible​

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Hello this is 7th class question and pls answer as soon as possible