pierwsze:
8 * 4 / 2 = 16
6 + 8 * 6 / 2 = 42
16 + 42 = 58m2
drugie:
11 * 6 / 2 = 33
4 * 6 / 2 = 12
3 * 2 = 6
33 + 12 + 6 = 51m2
