Respuesta :
Answer:
400 cm²
Step-by-step explanation:
(side2/side1)³ = Volume2/Volume
2³ = 64000/X
X = 64000/8
X = 8000
Volume = side³
8000 = side³
Each side = 20
Area of a face = side²
= 20² = 400 cm²
Answer:
400 cm²
Step-by-step explanation:
The new volume = 64,000 cm³
New length = (new volume)⅓ = (64,000)⅓ = 40cm
Old length = 40 cm ÷ 2 = 20 cm
Area = length² = 20² = 400 cm²