A cura di: Antonio Bernardo
$2p(ABC)=96cm$
$bar{AC}=bar{BC}=2/3 bar{AB} +20cm$
pongo $bar{AB}=x$
$bar{AC}=2/3 x +20cm$
Il perimetro $x+2(2/3 x+20)=96cm$
$x+4/3 x +40=96$
$3x+4x+120=288$
$7x=168$
$x=168/7=24cm$
- Geometria
A cura di: Antonio Bernardo
$bar{AC}=bar{BC}=2/3 bar{AB} +20cm$
pongo $bar{AB}=x$
$bar{AC}=2/3 x +20cm$
Il perimetro $x+2(2/3 x+20)=96cm$
$x+4/3 x +40=96$
$3x+4x+120=288$
$7x=168$
$x=168/7=24cm$