panjang busur bc = 10 cm
sudut boc = 90°
sudut aob = 108°
panjang busur ab..?
maka
90° 》 10 cm
108°》 ...cm
108/90 × 10 = 12 cm
atau
108 ÷ X = 90 ÷ 10
108/X = 9
108÷9 = X
12 = X
jadi jawabannya adalah 12 cm
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Jawaban
panjang busur bc = 10 cm
sudut boc = 90°
sudut aob = 108°
panjang busur ab..?
maka
90° 》 10 cm
108°》 ...cm
108/90 × 10 = 12 cm
atau
108 ÷ X = 90 ÷ 10
108/X = 9
108÷9 = X
12 = X
jadi jawabannya adalah 12 cm