Question

find the length of the diagonal of the rectangle, the side of which are 12cm and 8cm

Answer 1

The length of diagonal is Underoot 208

Answer 2

let length be = 12cm and breadth be=8cm
we know that,
Diagonal of rectangle=$\sqrt{l {}^{2} { + b}^{2} }$
$\sqrt{12 { {}^{2} + 8 }^{2} }$
$\sqrt{144 + 64}$
$\sqrt{208}$

$= 4 \sqrt{13}$