Respuesta :

zrh2sfo
Surface Area ≈ 1187.52 cm²

Cost 3$ per cm² times 1187.52cm² = $3,562.56

Volume ≈ 3078.76³

Explanation:

r = 7 cm = 1/2 diameter
h = 20 cm
V = 3078.76 cm³
L = 879.646 cm²
T = 153.938 cm²
B = 153.938 cm²
A = 1187.52 cm²
1187.52 cm2 would have to be the answer to this question