Rozwiązane

Oblicz pole prostokąta o wierzchołkach:
a) A= (-2,0) B= (-1,-3) C= (5, -1) D= (4, 2)
b) E = (-3, 4) F = (-1, 0) G = (1,1) H = (-1, 5)
c) I = (-3, -1) J = (4, -4) K = (7, 3) L = (0, 6)



Odpowiedź :

a.6x3 daje 18 b.2x4 daje 8 c.8x7 daje 56
a)
IABI = 3
ICDI= 3
IADI = 6
IBCI=6
P = a x b
P = 3 x 6
P = 18
b)
IEHI = 2
IEFI = 4
IFGI = 2
IHGI = 4
P = a x b
P = 2 x 4
P = 8
c)
ILKI = 7
ILII = 7
IIJI = 7
IKJI = 7
P = a x b
P = 7 x 7
P = 49

Inne Pytanie