Question

find the lenth of diagonal of a square whose side is 8 cm ​

Answer 1

Length of the d≈11.31cm

Answer 2

Answer:

$\sqrt{ 128$ cm

Step-by-step explanation:

you can use Pythagoras theorem as the diagonal would form a right triangle

so,

diagonal^2 = Side^2 + side^2

diagonal ^2 = 8^2 + 8^2

diagonal^2 = 64+ 64

diagonal = $\sqrt{128}$ cm

Hope this helps :)