b.∠BOC
Jawaban:
∠AOC + ∠BOC = 180o
(5a + 60)o + 3ao = 180o
5ao + 60o + 3ao = 180o
8ao + 60o = 180o
8ao = 180o – 60o
8ao = 120o
a = 120o/8o
a = 15o
b.∠BOC
Jawaban:
∠AOC + ∠BOC = 180o
(5a + 60)o + 3ao = 180o
5ao + 60o + 3ao = 180o
8ao + 60o = 180o
8ao = 180o – 60o
8ao = 120o
a = 120o/8o
a = 15o
Editor: Suci Annisa Caroline