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7 1/3 = 22/3 cm
Busur QP = <QOP/360 x keliling
22/3 = 60/360 x keliling
22/3 = 1/6 x keliling
keliling = 6 x 22/3
keliling = 44 cm
keliing = 2π r
44 = 2 x 22/7 x r
44 = 44/7 x r
r = 44 x 7/44
r = 7 cm
Luas lingkaran = πr . r
= 22/7 x 7 x7
= 154 cm2
Jadi luas lingkaran tersebut adalah 154 cm2