May 2019 1 62 Report
1) Sebuah juring lingkaran bersudut pusat 120° dan berjari -jari 21 cm.Hitunglah:
A.Panjang busur
B.Luas juring

2) Diketahui lingkaran bersudut pusat 300° dan berjari - jari 7 cm.Hitunglah:
A.Panjang busur
B.Luas juring

Mohon dibantu...Thanks

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