Dik : d = 28 cm
t.sudut = 120 °
Penyelesaian :
= 120°/360° x Keliling
= 1/3 x π x D
= 1/3 x 22/7 x 28
= 1/3 x 22 x 4
= 1/3 x 88
= 88/3 cm
Panjang Busur = 88/3 cm
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Dik : d = 28 cm
t.sudut = 120 °
Penyelesaian :
= 120°/360° x Keliling
= 1/3 x π x D
= 1/3 x 22/7 x 28
= 1/3 x 22 x 4
= 1/3 x 88
= 88/3 cm
Panjang Busur = 88/3 cm
= 120°/360° x Keliling
= 1/3 x π x D
= 1/3 x 22/7 x 28
= 1/3 x 22 x 4
= 1/3 x 88
= 88/3 cm