👤
Andraandra7
a fost răspuns

L=35cm l,L d.p. 4 si 7 P=?

Răspuns :

L/7=l/4=>l=4L/7=140/7=20 cm
P=2L+2l=70+40=110 cm
Aurelcraciun59
l/4=L/7
7l=4L
7l=4x35
7l=140
l=140:7
l=20 (latime)

P=2xL+2xl
P=2x35+2x20
P=70+40
P=110 cm