Odpowiedź :
Odpowiedź:
x + x + 3 + x + 6 = 36
3x + 9 = 36
3x = 27
x = 9 cm
Bok AC = 9 cm
Bok AB = 12 cm
Bok BC = 15 cm
a) Pole = (a*h)/2 = (9*12)/2 = 108/2 = 54 [tex]cm^{2}[/tex]
b) Obwód = 9 + 12 + 15 = 36 cm

Odpowiedź:
x + x + 3 + x + 6 = 36
3x + 9 = 36
3x = 27
x = 9 cm
Bok AC = 9 cm
Bok AB = 12 cm
Bok BC = 15 cm
a) Pole = (a*h)/2 = (9*12)/2 = 108/2 = 54 [tex]cm^{2}[/tex]
b) Obwód = 9 + 12 + 15 = 36 cm