Jika Π=22/7,panjang busur=120°,jika jari jari=21,maka luas juring
Matematika
putiandini1226
Pertanyaan
Jika Π=22/7,panjang busur=120°,jika jari jari=21,maka luas juring
2 Jawaban
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1. Jawaban daffarasditya
L juring = x/360°× luas lingkaran
= 120°/360°× 22/7×21×21
= 462 -
2. Jawaban ashalina1
luas juring = a°/360° ×πr². = 120°/360°×22/7×21×21 = 1/3×22×3×21=22×3×7 = 462 cm ²