Odpowiedzi

2009-04-07T20:32:17+02:00
X - pierwszy bok - 8 cm
50% 8 = 4

150% x - drugi bok - 12 cm

2x + 2 x 150/100x = 40
2x + 3 x = 40
5x = 40 |: 5
x = 8

P = 12 x 8 = 96
2009-04-07T20:33:46+02:00
X - dlugosc krotszego boku
x + x + 1 1/2x + 1 1/2x = 40
5x = 40
x = 8
1 1/2x = 12
8 x 12 = 96 cm2