Question

Aflati latura patratului cu Aria de a)361cm²; b)5,76²; c)9,61². Va rog ajutati-ma

Answer 1

$A _{p} =l ^{2}$
$l= \sqrt{A}$
$a) A= 361 cm^{2}$
$l= \sqrt{361}$
$l=19 cm.$
$b)A=5,76 cm^{2}$
$l= \sqrt{5,76}$
$l=2,4 cm.$
$c)A=9,61cm ^{2}$
$l= \sqrt{9,61}$
$l=3,1 cm.$