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Perhatikan gambar berikut! Jika panjang OB = 21 cm, maka panjang busur AB (minor) adalah….

Perhatikan gambar berikut!
 
Jika panjang OB = 21 cm, maka panjang busur AB (minor) adalah….

  1. 22 cm

  2. 44 cm

  3. 88 cm

  4. 132 cm

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H. Eka

Master Teacher

Mahasiswa/Alumni Universitas Pendidikan Indonesia

Jawaban terverifikasi

Pembahasan

text Jari-jari lingkaran = panjang OB = 21 cm end text Keliling space lingkaran space equals space 2 πr space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals space 2 cross times 22 over 7 cross times 21 cm space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals space 132 space cm space  Panjang space busur equals fraction numerator straight alpha over denominator 360 degree end fraction cross times Keliling space lingkaran space Panjang space busur space AB equals fraction numerator 60 degree over denominator 360 degree end fraction cross times 132 space cm space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 1 over 6 cross times 132 space cm space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals space 22 space cm

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