Odpowiedź :
Odpowiedź:
obw = 30
1szy bok = x
2 bok = x - 5
3 bok = x - 10
x + x - 5 + x - 10 = 30
3x = 30 + 15
3x = 45/3
x = 15
1szy bok = 15 cm
2 bok = 10 cm
3 bok = 5 cm
Odpowiedź:
obw = 30
1szy bok = x
2 bok = x - 5
3 bok = x - 10
x + x - 5 + x - 10 = 30
3x = 30 + 15
3x = 45/3
x = 15
1szy bok = 15 cm
2 bok = 10 cm
3 bok = 5 cm