Question

UN dreptunghi are L=12cm si l=9cm. Aflati perimetrul si aria dreptunghiului.

Answer 1

A=L×l=12×9=108 cm patrati (cm^2)
P=2(L+l)=2(12+9)=2×21=42cm
spor! coroana?

Answer 2

$A=L*l$
$A = 12cm*9cm$
$A = 108cm^2$

$P = 2L+2l$
$P = 2*(12)+2*(9)$
$P = 24+18$
$P = 42$