Question

square length is 2cm and it's diagonal​

Answer 1

Answer:

2√2 cm

Step-by-step explanation:

We are given a square of side 2 cm

We are required to find the length of diagonal of square

Formula of length of diagonal:

d=$\sqrt{2} a$

Where a is the side of square

So, the diagonal of given square :

d=$\sqrt{2} \times 2$

d=$2\sqrt{2}$

Hence the length of a diagonal of a square whose side is 2cm is 2√2 cm

Answer 2

GIVEN:-

draw a square namely ABCD with each side 2cm

AB=BC=CD=AD=2cm

draw a diagonal from A to C

TO FIND:-

AC (diagonal)

PROOF:-

$AC^{2}$ = $AB^{2}$ + $BC^{2}$  (PYTHAGORAS THEOREM)

$AC^{2}$ = $2^{2}$ + $2^{2}$

$AC^{2}$ = 4+4

$AC^{2}$ = 8

AC = $\sqrt{8}$

AC = 2$\sqrt{2}$

THEREFORE,

DIAGONAL = 2$\sqrt{2}$

HOPE THIS HELPS YOU!

PLEASE MARK ME AS A BRAINALIST..