Matematika

Pertanyaan

Tolong ya bang kak pakek jalan
No 3-6
Tolong ya bang kak pakek jalan No 3-6

1 Jawaban

  • 3)
    Sisi Alas :
    L = s²
    100 = s²
    s = √100
    s = 10 cm

    4)
    Jari - Jari :
    V = ⅓πr²t
    16.632 = ⅓ × 22/7 × 36r²
    16.632 = 22/7 × 12r²
    16.632 = 264/7r²
    16.632 ÷ 264/7 = r²
    r² = 441
    r = 21 cm

    5)
    Volume Kerucut :
    V = ⅓πr²t
    V = ⅓ × 22/7 × (14/2)² × 30
    V = 22/7 × 7 × 7 × 10
    V = 22 × 70
    V = 1.540 cm³

    Volume Tabung :
    V = πr²t
    V = 22/7 × (14/2)² × 30
    V = 22/7 × 7 × 7 × 30
    V = 22 × 210
    V = 4.620 cm³

    Volume Tabung Diluar Kerucut :
    V = 4.620 cm³ - 1.540 cm³
    V = 3.080 cm³

    6)
    Volume Limas :
    V = ⅓ × ½ × JSS × t × T
    V = 1/6 × (8 + 5) × 6 × 10
    V = 13 × 10
    V = 130 cm²

    Maaf Kalau Salah