besar
Matematika
BalqisAuroraSanca
Pertanyaan
besar <BAC adalah... (un smp 2011)
A. 24°
B. 48°
C. 72°
D. 98°
A. 24°
B. 48°
C. 72°
D. 98°
2 Jawaban
-
1. Jawaban KingRevanza
180–108 = 72°
Sudut ACB = 72°
Sudut BAC = 180–72–36 = 72° -
2. Jawaban sam140
<BCA = 180 - 108 = 72
∆ABC = <BCA + <BAC + <ABC
180 = 72 + <BAC + 36
72 = <BAC (C)