Răspuns :
P =2L+2 l
l =8cm ; L =3*l /4 =3*8 /4 =24/4 =6 cm
P =2*6 +2*8
P =12+16 =28 cm
(ac. in masura in care lungimea e 3/4 din latime !!?? )
l =8cm ; L =3*l /4 =3*8 /4 =24/4 =6 cm
P =2*6 +2*8
P =12+16 =28 cm
(ac. in masura in care lungimea e 3/4 din latime !!?? )