1.Panjang rusuk = 45 cm
2.Panjang rusuk 25 cm
~kubus
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Penjelasan dengan langkah-langkah:
1.) V = r³
V = 45 × 45 × 45
V = 2.025 × 45
V = 91.125 Cm³
LP = 6 × r²
LP = 6 × 45 × 45
LP = 270 × 45
LP = 12.150 Cm²
2.) V = r³
V = 25 × 25 × 25
V = 625 × 25
V = 15.625 Cm³
LP = 6 × r²
LP = 6 × 25 × 25
LP = 150 × 25
LP = 3.750 Cm²
Soal =
1.) Tentukan lah volume dan luas permukaan kubus
1.Panjang rusuk = 45 cm
2.Panjang rusuk 25 cm
Jawaban =
Volume = Sisi x sisi x sisi = Sisi^3.
Lp = 6 x sisi x sisi.
1. Panjang rusuk = 45 cm.
V = Sisi x sisi x sisi.
V = 45 cm x 45 cm x 45 cm.
V = 91.125 cm^3.
Lp = 6 x sisi x sisi.
Lp = 6 x 45 x 45 cm.
Lp = 6 x 2.025 cm.
Lp = 12.150 cm^2.
2. Panjang rusuk = 25 cm.
V = Sisi x sisi x sisi.
V = 25 cm x 25 cm x 25 cm.
V = 15.625 cm^3.
Lp = 6 x sisi x sisi.
Lp = 6 x 25 x 25 cm.
Lp = 6 x 625 cm.
Lp = 3.750 cm^2.
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