Tolong bantu ya besok di kumpulin
Jawaban:
No 1:
Volume Kerucut
= ⅓ × Luas Alas × Tinggi
= ⅓ × π × r² × tinggi
= ⅓ × 22/7 × 7 cm × 7 cm × 9 cm
= 22 × 7 cm × 3 cm
= 154 cm × 3 cm
= 462 cm³
No 2:
Diameter = 14 cm
Jari-Jari = 14 ÷ 2 = 7 cm
Volume Kerucut
= ⅓ × Luas Alas × Tinggi
= ⅓ × π × r² × tinggi
= ⅓ × 22/7 × 7 cm × 7 cm × 18 cm
= 22 × 7 cm × 6 cm
= 154 cm × 6 cm
= 924 cm³
No 3:
Diameter = 20 cm
Jari-Jari = 20 ÷ 2 = 10 cm
Volume Kerucut
= ⅓ × Luas Alas × Tinggi
= ⅓ × π × r² × tinggi
= ⅓ × 3,14 × 10 cm × 10 cm × 18 cm
= 314 × 6 cm
= 1.884 cm³
No 4:
Volume Kerucut
= ⅓ × Luas Alas × Tinggi
= ⅓ × π × r² × tinggi
= ⅓ × 3,14 × 10 cm × 10 cm × 9 cm
= 314 × 3 cm
= 942 cm³
Penjelasan dengan langkah-langkah:
Answer By @rifqigamers888