tolong jawab dengan penjelasan
Jawaban:
1.)
a.
Lp = 4 × πr²
Lp = 4 × 3,14 × 12 × 12
Lp = 1.808.64 cm³
V = 4/3 × πr³
V = 4/3 × 3,14 × 12 × 12 × 12
V = 7.234,56 cm²
2.)
b.
Lp = 4 × πr²
Lp = 4 × 3,14 × 5 × 5
Lp = 314 cm³
V = 4/3 × πr³
V = 4/3 × 3,14 × 5 × 5 × 5
V = 523,333 cm²