Odpowiedź:
drut = 44cm
prostokąt (boki b,c)
b= 1/2a
c = 1cm +a
44 cm = 2 x 1/2a + 4a+ 2(a + 1)= a + 4a + 2a +2 =7a +2
44 cm - 2 = 28
28 : 7 = 4
a= 4
Pole kwadratu = 4x4 = 16
Pole prostokąta = (1/2 x 4) x (4+1) = 2 x 5 = 10
