Question

find the perimeter of a square if its diognal is
$\sqrt{2}$
​

Answer 1

Answer:

diagonal =√2

side²×side²=diagonal²

x²+x²=√2²

2x²=2

x²=2/2=1

x=√1

x=1

therefore side = 1 cm

perimeter = 4× side= 4×1= 4 cm