Question

3. If diagonal of a square is 13 cm then find its side



Please guys give me a answer fast and quickly please ​

Answer 1

Answer:

9.192388155425118 cm

Step-by-step explanation:

side = s

diagonal = d

then,

$\sqrt{s^2 + s^2}$ = d

s^2 + s^2 = d^2

2s^2 = 13^2

2s^2 = 169

s^2 = 169/2 = 84.5

s = root 84.5 = 9.192388155425118 cm

Answer 2

Answer:

h2= l2+ b2

let length x

13=x^2+x^2

13=2x^2

√(13/2)=x