Matematika

Pertanyaan

tolong dibantu ya nomor 5,6,7,8,

dikumpulkan besok pakai rumus
tolong dibantu ya nomor 5,6,7,8, dikumpulkan besok pakai rumus

1 Jawaban

  • 5.
    d¹ = 12 cm
    d² = 5 cm

    L = ½ × d¹ × d²
    L = ½ × 12 × 5
    L = 6 × 5
    L = 30 cm²

    6.
    d¹ = 15 cm + 8 cm = 23 cm
    d² = 8 cm + 8 cm = 16 cm

    L = ½ × d¹ × d²
    L = ½ × 23 × 16
    L = 23 × 8
    L = 184 cm²

    7.
    d¹ = 10 cm + 10 cm = 20 cm
    L = 250 cm²

    L = ½ × d¹ × d²
    250 = ½ × 20d²
    250 = 10d²
    25 = d²
    d² = 25 cm

    AC = 25 cm

    8.
    JSS = 70 m + 100 m = 170 m
    L = 3.060 m²

    L = ½ × (JSS) × t
    3.060 = ½ × 170t
    3.060 = 85t
    36 = t
    t = 36 cm

    Maaf Kalau Salah