Question

In a square abcd, length of each side is4 cm. The length of its diagonal is __________cm.

Answer 1

$\sqrt{32}$
is the length of diagonal of square of abcd

Answer 2

Let abcd is square .
In ∆ BCD
As side =4cm,
so H^2=p^2+b^2

BD^2= 32
BD=√32
BD=4√2cm