Question

sa se afle perimetrul pătratului care are aria de:

a) 19321 cm^2

b)16,4025 cm^2

c)0,252004 cm^2


Dau coroană! ​

Answer 1

Răspuns:

$a)\: A=19321\:cm^{2} \\l=\sqrt{19321} =139\\P=4l=4\times139=556\:cm$

$b)\:A=164025\:cm^{2} \\l=\sqrt{164025} =405\:cm\\P=4l=4\times405=1620\:cm$

$c)\:A=252004\:cm^{2} \\l=\sqrt{252004} =502\:cm\\P=4l=4\times502=2008\:cm$