9.1: 13, 14, 19
10.1: 13, 14, 17, 20
12.1: 14, 16, 19, 21
16.1: 15, 18, 21, 23
17.1: 1, 2, 3, 4
19.1: 15, 17, 19, 23
23.1: 14, 15, 18, taitopuntari 6
24.1: 15, 17, 22
6.2: 15, 17, 20
7.2: 11, 14, 17
9.2: 12, 16, 19
13.2: 13, 15, 17, 19
14.2: Lue lieriö ja tee kappaleesta tehtävät 1, 2, 3, 5
16.2: Lue kartion teoria ja katso esimerkit. Rentouttavaa hiihtolomaa!
27.2: 12, 16, 18
28.2: 5, 7, 9