Răspuns :
P=2*(L+l)=105,2 cm
L=2*l
2*(L+l)=2*(2l+l)=2*3l=6l
6l=105,2
l=17,5(3)
L=35,0(6)
L=2*l
2*(L+l)=2*(2l+l)=2*3l=6l
6l=105,2
l=17,5(3)
L=35,0(6)
L = 2l
P = 2xL + 2x l
P = 2 x ( 2xl ) + 2l
105 , 2 = 4l + 2l
105 , 2 = 6l
l = 105 , 2 : 6
l = 17 , 53
L = 2 X 17 , 53
L = 35 , 06
P = 2xL + 2x l
P = 2 x ( 2xl ) + 2l
105 , 2 = 4l + 2l
105 , 2 = 6l
l = 105 , 2 : 6
l = 17 , 53
L = 2 X 17 , 53
L = 35 , 06