Question

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

Answer 1

By Pythagorus Theorem,

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

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

$1681 = {x}^{2}$

$x = \sqrt{1681}$

$x = 41$