Question

find the diagonal of a rectangle whose is 35cm and breathe is 12cm

Answer 1

the diagonal is calculated by using Pythagoras theorem
the ans is 37
I hope that helped

Answer 2

so here , use Pythagoras thm. bcoz each interior angle of rectangle is 90 degree .
so, acc to Pythagoras thm.
diagonal=
$\sqrt{ {12 }^{2} + {35}^{2} } \\ = \sqrt{144 + 1225 } \\ = \sqrt{1369 } \\ = 37$