Question

if the side of square is 12 cm then what is it's diagonal​

Answer 1

Answer:

Let ABCD be the square and AC be the diagonal as shown in the above figure:

It is given that AB=BC=CD=DA=12 cm

In △ABC, ∠B=90°

According to the pythagoras theorem

AC² =AB² +BC²

⇒AC² =12²+12²

⇒AC²=144+144

⇒AC²=288

⇒AC= √288

⇒AC=√12²×2

⇒AC=√12²

Hence, the length of the diagonal is AC=√12²cm.

Step-by-step explanation:

$Hope \: it \: helps \: uh...$

Answer 2

Answer:

16.968 m

Step-by-step explanation:

let the side of square be a =12,

then the formula of diagonal of square =√a²+a²

=a*√2

then, =12*√2

=12*1.414(decimal value of √2)

answer=16.968 m