Matematika

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tolong jawab kakak.besok kumpul
tolong jawab kakak.besok kumpul

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1 Jawaban

  • [17]. Jawab:
    Luas Juring OCD = 80 [tex]cm^2[/tex]
    ∠DOC = 60°
    ∠COB = 90° - 60° = 30°
    Luas Juring OBC = 30/60 x 80
    Luas Juring OBC = 40 [tex]cm^2[/tex]
    The Correct Answer Is D. 40 [tex]cm^2[/tex]

    [18]. Jawab:
    Panjang Busur CD = 12,8 cm
    ∠AOB = 120°
    ∠COD = 72°
    Panjang Busur AB = 120/72 x 12,8
    Panjang Busur AB = 21,3 cm
    The Correct Answer Is C. 21,3 cm

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