Odpowiedzi

2009-09-24T18:48:55+02:00
Z Twierdzenia Talesa:
a) |AC|/24=16/12
|AC|=(24*16)/12
|AC|=32
b) |AD|/5=12/8
|AD|=(5*12)/8
|AD|=15/2
2009-09-24T20:06:02+02:00
Twierdzenia Talesa :
a) AC/BC = CD/CE => AC = CD*BC/CE = 16*24/12 = 32 cm

b) AD/BE = AC/BC = AC/CE+BE => AD = 5*12/3+5 = 15/2 = 7,5 dm