17
fehér
91
111
x = 9
1, 2, 3, 4, 5, 6, 7, 8, 9
I. 245-nek az 1/5-e = 49 II. 390-nek a 2/3-a = 260 III. 392-nek a 3/4-e = 294
32
66600
13,9
x = 9,732
7
YZ < ZT = XT < WZ
A = 2 B = 4 C = 1
45°