Question

find the length of diagonal of the rectangle having sides 11cm and 60cm

Answer 1

Lenght of the diagonal=
$\sqrt{l { }^{2} + b {}^{2} }$
$\sqrt{11 {}^{2} + 60 {}^{2} }$
$\sqrt{121 + 3600}$
$\sqrt{3721}$
$61$