Răspuns :
l-latura patratului
(l+[tex] \frac{l}{2}+ \frac{l}{4} [/tex]):3=770⇒l+[tex] \frac{l}{2}+ \frac{l}{4} [/tex]=2310
inmultim totul cu 4
4l+2l+l=9240
7l=9240⇒l=1320
P=1320*4=5280
(l+[tex] \frac{l}{2}+ \frac{l}{4} [/tex]):3=770⇒l+[tex] \frac{l}{2}+ \frac{l}{4} [/tex]=2310
inmultim totul cu 4
4l+2l+l=9240
7l=9240⇒l=1320
P=1320*4=5280
L= latura
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Avem L+L/2+L/4=770*4
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4L+2L+L=3080
=>7L=9240=>L=1320
Verificam: L+L/2+L/4=3080
1320+660+330=770*3=>2310=2310