110°
Sudut ROP menghadap busur yang sama yaitu busur RP sehingga berlaku sudut pusat = 2 x sudut keliling = 2 x 55° = 110°
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110°
Sudut ROP menghadap busur yang sama yaitu busur RP sehingga berlaku sudut pusat = 2 x sudut keliling = 2 x 55° = 110°