tentukan
1.Volume tabung
2.Luas permukaan tabung
3.Volume kerucut
4.Luas permukaan kerucut
1.Volume tabung
2.Luas permukaan tabung
3.Volume kerucut
4.Luas permukaan kerucut
Materi : Bangun Ruang dan Volume
Soal Nomor 1
Volume Tabung
V = π × r² × t
V = 22/7 × 7 × 7 × 30
V = 22 × 1 × 7 × 30
V = 660 × 7
V = { 4.620 satuan³ }
Soal Nomor 2
Luas Permukaan Tabung
Lp = 2 × π × r² + π × d × t
Lp = 2 × 22/7 × 7 × 7 + 22/7 × 14 × 30
Lp = 44 × 7 + 22 × 2 × 30
Lp = 308 satuan² + 1.320 satuan²
Lp = { 1.628 satuan² }
________________________
Tinggi Kerucut
t² = s² - a²
t² = 25² - 7²
t² = 625 - 49
t² = 576
t = √576
[ t = 24 cm ]
________________________
Soal Nomor 3
Volume Kerucut
V = ⅓ × π × r² × t
V = ⅓ × 22/7 × 7 × 7 × 18
V = 22 × 7 × 6
V = 132 × 7
V = ( 700 + 210 + 14 ) satuan²
V = { 924 satuan³ }
Soal Nomor 4
Luas Permukaan Kerucut
Lp = π × r × ( r + s )
Lp = 22/7 × 7 × ( 7 + 25 )
Lp = 22 × 32
Lp = { 704 satuan² }
Semoga bisa membantu
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