a) p = 1/2 × 5 (5 - 3) = 2,5 × 2 = 5
TAK
b) p = 1/2 × 6 (6 - 3) = 3 × 3 = 9
c) p = 1/2 × 7 (7 - 3) = 3,5 × 4 = 14