Jawab:
Penjelasan dengan langkah-langkah:
8. Volume gabungan = Volume Balok + Volume Limas
Rumus Volume Balok = Panjang x Lebar x Tinggi
Rumus Volume Limas = 1/3 x Luas Alas x Tinggi = 1/3 x Panjang x Lebar x Tinggi
Diketahui,
Panjang Balok = 25 cm
Lebar Balok = 16 cm
Tinggi Balok = 28 cm
Panjang Limas = 25 cm
Lebar Limas = 16 cm
Tinggi Limas = 43 - 28 = 15 cm
Maka, Volume Balok = P x L x T = 25 x 16 x 28 = 11.200 cm^3
Volume Limas = 1/3 x P x L x T = 1/3 x 25 x 16 x 15 = 2000 cm^3
Sehingga, Volume Gabungan = Volume Balok + Volume Limas = 13.200 cm^3
9. Volume gabungan = Volume Kubus + Volume Kerucut
Rumus Volume Kubus = Sisi x Sisi x Sisi = Sisi^3
Rumus Volume Kerucut = 1/3 x Luas Alas x Tinggi = 1/3 x π x r^2 x Tinggi
Panjang Sisi Kubus = 14 cm
Jari-jari Kerucut = Diameter Kerucut / 2 = 14 / 2 = 7 cm
Tinggi Kerucut = 32 - 14 = 18 cm
Maka, Volume Kubus = S x S x S = 14 x 14 x 14 = 2.744 cm^3
Volume Limas = 1/3 x π x r^2 x T = 1/3 x 22/7 x 14 x 14 x 18 = 3.696 cm^3
Sehingga, Volume Gabungan = Volume Kubus + Volume Kerucut = 6.440 cm^3
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Jawab:
Penjelasan dengan langkah-langkah:
8. Volume gabungan = Volume Balok + Volume Limas
Rumus Volume Balok = Panjang x Lebar x Tinggi
Rumus Volume Limas = 1/3 x Luas Alas x Tinggi = 1/3 x Panjang x Lebar x Tinggi
Diketahui,
Panjang Balok = 25 cm
Lebar Balok = 16 cm
Tinggi Balok = 28 cm
Panjang Limas = 25 cm
Lebar Limas = 16 cm
Tinggi Limas = 43 - 28 = 15 cm
Maka, Volume Balok = P x L x T = 25 x 16 x 28 = 11.200 cm^3
Volume Limas = 1/3 x P x L x T = 1/3 x 25 x 16 x 15 = 2000 cm^3
Sehingga, Volume Gabungan = Volume Balok + Volume Limas = 13.200 cm^3
9. Volume gabungan = Volume Kubus + Volume Kerucut
Rumus Volume Kubus = Sisi x Sisi x Sisi = Sisi^3
Rumus Volume Kerucut = 1/3 x Luas Alas x Tinggi = 1/3 x π x r^2 x Tinggi
Diketahui,
Panjang Sisi Kubus = 14 cm
Jari-jari Kerucut = Diameter Kerucut / 2 = 14 / 2 = 7 cm
Tinggi Kerucut = 32 - 14 = 18 cm
Maka, Volume Kubus = S x S x S = 14 x 14 x 14 = 2.744 cm^3
Volume Limas = 1/3 x π x r^2 x T = 1/3 x 22/7 x 14 x 14 x 18 = 3.696 cm^3
Sehingga, Volume Gabungan = Volume Kubus + Volume Kerucut = 6.440 cm^3