Tolong dibantu kak~~
Jangan asal² yh~~
1. Luas permukaan
L = 6 × s²
L = 6 × 18²
L = 6 × 324
L = 1.944 dm²
2. Volume
V = s³
V = 15³
V = 3.375 dm³
V = 3.375 liter
3.
a.
Luas permukaan
L = 6 × 30²
L = 6 × 900
L = 5.400 cm²
Volume
V = 30³
V = 27.000 cm³
b.
Luas permukaan
L = 6 × 12²
L = 6 × 144
L = 864 cm²
Volume
V = 12³
V = 2.016 cm³
c.
Luas permukaan
L = 6 × 35²
L = 6 × 1.125
L = 7.350 cm²
Volume
V = 35³
V = 42.875 cm³
Penjelasan dengan langkah-langkah:
1. Diketahui,
s = 18 dm
Luas permukaan = 6 × s × s
= 6 × 18 dm × 18 dm
= 1.944 dm²
2. Diketahui,
s = 15 dm
volume = s × s × s
= 15 dm × 15 dm × 15 dm
= 3.375 dm³
3.
a. Luas permukaan = 6 × 30 cm × 30 cm
= 5.400 cm²
Volume = 30 cm × 30 cm × 30 cm
= 27.000 cm³
b. Luas permukaan = 6 × 12 cm × 12 cm
= 864 cm²
Volume = 12 cm × 12 cm × 12 cm
= 1.728 cm³
c. Luas permukaan = 6 × 35 cm × 35 cm
= 7.350 cm²
Volume = 35 cm × 35 cm × 35 cm
= 42.875 cm³