Răspuns :
latimea = x
lungimea = x+8
( x+x+8)x2 = 86
2x+8 = 86:2
2x+8 = 43
2x = 43 - 8
2x = 35
x = 35 :2
x=17,5
latimea = 17,5 m
lungimea = 17,5 + 8 = 25,5 m
lungimea = x+8
( x+x+8)x2 = 86
2x+8 = 86:2
2x+8 = 43
2x = 43 - 8
2x = 35
x = 35 :2
x=17,5
latimea = 17,5 m
lungimea = 17,5 + 8 = 25,5 m