Question

find the length of a diagonals of square whose side is 13 cm ​

Answer 1

Answer:

Sorry this question is very hard

Answer 2

Answer:

18.384cm

Step-by-step explanation:

we know that all sides of a square are equal

Construction - Draw a square ABCD

join diagonal AC

let's take right triangle ADC right angled at D.

according to pythagorus theorum

H^2=P^2+B^2

(AC)^2 = (AD)^2 + (DC)^2

(AC)^2 = (13)^2 + (13)^2

(AC)^2 = 169 + 16

AC = √338