Penjelasan dengan langkah-langkah:
Diket : Panjang Balok = 28cm
Lebar Balok = 14cm
Tinggi Balok = 12cm
Tinggi Limas : 30 – 12 = 18cm
Panjang Persegi (Pp): 28cm
Lebar Persegi (Lp): 10cm
Dit : Volume Gabungan Bangun Ruang (?)
Dijawab : Volume Balok
Vbalok = p × l × t
Vbalok = 28 × 14 × 12
Vbalok = 4.704cm³
Volume Limas
Vlimas = ⅓ × L.alas × tinggi
Vlimas = ⅓ × (28 × 14) × 12
Vlimas = ⅓ × 392 × 12
Vlimas = 92 × 12
Vlimas = 1.568cm³
Gabungan = 4.704 + 1.568
= 6.272cm³
Diket : Panjang Tabung = 14cm
Lebar Tabung = 17cm
Dijawab : Volume Tabung
Vtabung = π × r × r × t
Vtabung = ²²/7 × (12 × 14) × 28
Vtabung = ²²/7 × (168) × 28
Vtabung = 14.784cm³
Volume Kerucut
Vkerucut = ⅓ × π × r² × t
Vkerucut = ⅓ × 3,14 × (12 × 14) × 28
Vkerucut = ⅓ × 3,14 × (168) × 28
Vkerucut = 4.923,52³
Gabungan = 14.784 + 4.923,52
= 19.707,52cm³
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Penjelasan dengan langkah-langkah:
SOAL NO. 2
Diket : Panjang Balok = 28cm
Lebar Balok = 14cm
Tinggi Balok = 12cm
Tinggi Limas : 30 – 12 = 18cm
Panjang Persegi (Pp): 28cm
Lebar Persegi (Lp): 10cm
Dit : Volume Gabungan Bangun Ruang (?)
Dijawab : Volume Balok
Vbalok = p × l × t
Vbalok = 28 × 14 × 12
Vbalok = 4.704cm³
Volume Limas
Vlimas = ⅓ × L.alas × tinggi
Vlimas = ⅓ × (28 × 14) × 12
Vlimas = ⅓ × 392 × 12
Vlimas = 92 × 12
Vlimas = 1.568cm³
Gabungan = 4.704 + 1.568
= 6.272cm³
SOAL NO. 3
Diket : Panjang Tabung = 14cm
Lebar Tabung = 17cm
Dit : Volume Gabungan Bangun Ruang (?)
Dijawab : Volume Tabung
Vtabung = π × r × r × t
Vtabung = ²²/7 × (12 × 14) × 28
Vtabung = ²²/7 × (168) × 28
Vtabung = 14.784cm³
Volume Kerucut
Vkerucut = ⅓ × π × r² × t
Vkerucut = ⅓ × 3,14 × (12 × 14) × 28
Vkerucut = ⅓ × 3,14 × (168) × 28
Vkerucut = 4.923,52³
Gabungan = 14.784 + 4.923,52
= 19.707,52cm³