Odpowiedzi

2010-03-01T16:16:56+01:00
P=35cm2
36cm2 = [(a+b)*h] /2
72cm2 = (a+b)*h
72cm2 = 18 * h
h = 72/18 = 4cm

tgα = 4:3 = 1,(3)
10 4 10