perhatikan gambar di samping. Jika besar <BOD = 128°, besar <BCD = .....

2 Jawaban

  • 1 lingkaran - <BOD
    = 360 - 128
    = 232
    <BCD = 232 : 2 = 116

    semoga benar :)
  • [tex]\ \textless \ BCD= \frac{1}{2} \times (360^{o} - \ \textless \ BOD)= \frac{1}{2} \times (360^{o} - 128^{o})= \frac{1}{2} \times 232^{o} =116^{o}[/tex]
    jadi jawabannya A.