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Verified answer
A . Sudut keliling = ½ sudut pusat = 40°B . Sudut keliling = ½ sudut pusat = 40°
C . Sudut berpelurus = 180 - 80 = 100°
= 80 : 2 = 40˚
b.)< ACB = <ACB dan <ADB merupakan sudut
keliling yang menghadap busur
yang sama, jadi besar sudutnya
sama = 40˚
c.)<BOC = 180 - 80
= 100˚
semoga membantu :)
jadiin jawaban terbaik yak