No 16 & 17 tolong Di Jawab yha kak, soalnya besok di kumpulkan

Bangun Ruang Sisi Lengkung

Nomor 16
Bola
L = 12.936 cm²

L = 4πr²
12.936 cm² = 4 × 22/7 × r²
12.936 cm² = 88/7 × r²
r² = 12.936 cm² × 7/88
r² = 1.029 cm²
r = √1.029 cm
r = √49×21 cm
r = 7√21 cm

d = 2r
d = 2 × 7√21 cm
d = 14√21 cm
Jawaban A

Nomor 17
Kerucut
s = 13 cm
t = 12 cm
π = 3,14

r² = s² – t²
r² = 13² – 12²
r² = 169 – 144
r = √25
r = 5 cm

V = 1/3 × πr²t
V = 1/3 × 3,14 × 5 cm × 5 cm × 12 cm
V = 1/3 × 3,14 ×300 cm³
V = 314 cm³
Jawaban D