Penjelasan dengan langkah-langkah:
1) a. Volume = 20x12x6
Volume = 1.440 cm³
b. Luas permukaan = 2×(20×12 + 20×6 + 12×6)
Luas permukaan = 2×(240+120+72)
Luas permukaan = 2× 432
Luas permukaan = 864 cm²
c. panjang diagonal ruang = √(20²+12²+6²)
panjang diagonal ruang = √(400+144+36)
panjang diagonal ruang = √580
panjang diagonal ruang = 2√145 cm
2) Volume = s³
Volume = 15³
Volume = 3.375 cm³
Luas permukaan = 6s²
Luas permukaan = 6 × 15²
Luas permukaan = 1.350 cm²
panjang diagonal sisi = 15√2 cm
panjang diagonal ruang = 15√3 cm
3) Volume = 10² × 24/3
Volume = 100 × 8
Volume = 800 cm³
t∆ = √(24²+5²)
t∆ = √(576+25)
t∆ = √601 cm
Luas permukaan = 10² + 2×10×√601
Luas permukaan = (100 + 20√601) cm²
V = p × l × t
V = 20 × 12 × 6
V = 240 × 6
V = 1.440 cm³
Lp = 2(pl + pt + lt)
Lp = 2(20 × 12 + 20 × 6 + 12 × 6)
Lp = 2(240 + 120 + 72)
Lp = 2(432)
Lp = 864 cm²
V = r × r × r
V = 15 × 15 × 15
V = 3.375 cm³
Lp = 6s²
Lp = 6 × 15²
Lp = 6 × 225
Lp = 1.350 cm²
Db = r√2
Db = 15√2 cm
Dr = r√3
Dr = 15√3 cm
V = ⅓ × La × T
V = ⅓ × (10 × 10) × 24
V = ⅓ × 100 × 24
V = ⅓ × 2.400
V = 800 cm³
Lp = (s × s) + (½ × a × t)
Lp = (10 × 10) + (4 . ½ × 10 × √601)
Lp = 100 + 20√601 cm
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Penjelasan dengan langkah-langkah:
1) a. Volume = 20x12x6
Volume = 1.440 cm³
b. Luas permukaan = 2×(20×12 + 20×6 + 12×6)
Luas permukaan = 2×(240+120+72)
Luas permukaan = 2× 432
Luas permukaan = 864 cm²
c. panjang diagonal ruang = √(20²+12²+6²)
panjang diagonal ruang = √(400+144+36)
panjang diagonal ruang = √580
panjang diagonal ruang = 2√145 cm
2) Volume = s³
Volume = 15³
Volume = 3.375 cm³
Luas permukaan = 6s²
Luas permukaan = 6 × 15²
Luas permukaan = 1.350 cm²
panjang diagonal sisi = 15√2 cm
panjang diagonal ruang = 15√3 cm
3) Volume = 10² × 24/3
Volume = 100 × 8
Volume = 800 cm³
t∆ = √(24²+5²)
t∆ = √(576+25)
t∆ = √601 cm
Luas permukaan = 10² + 2×10×√601
Luas permukaan = (100 + 20√601) cm²
Nomor 1
Diketahui:
Ditanyakan:
Penyelesaian:
V = p × l × t
V = 20 × 12 × 6
V = 240 × 6
V = 1.440 cm³
Lp = 2(pl + pt + lt)
Lp = 2(20 × 12 + 20 × 6 + 12 × 6)
Lp = 2(240 + 120 + 72)
Lp = 2(432)
Lp = 864 cm²
Nomor 2
Diketahui:
Ditanyakan:
Penyelesaian:
V = r × r × r
V = 15 × 15 × 15
V = 3.375 cm³
Lp = 6s²
Lp = 6 × 15²
Lp = 6 × 225
Lp = 1.350 cm²
Db = r√2
Db = 15√2 cm
Dr = r√3
Dr = 15√3 cm
Nomor 3
Diketahui:
Ditanyakan:
Penyelesaian:
V = ⅓ × La × T
V = ⅓ × (10 × 10) × 24
V = ⅓ × 100 × 24
V = ⅓ × 2.400
V = 800 cm³
Lp = (s × s) + (½ × a × t)
Lp = (10 × 10) + (4 . ½ × 10 × √601)
Lp = 100 + 20√601 cm