Kak, yg bisa bantuin al :))​

Jawaban:

8.a. Pukul 03.00 , 09.00 , 15.00 , 21.00 , dll

b. 03.50, 11.30 , 06.00 , 18.00 , dll

9. a.lancip

b.tumpul

c.lancip

e.lancip