Ball-shaped 28481
How many square meters of material is needed to make a ball-shaped balloon with a volume of 950 m3?
Correct answer:
![](/img/81/balloon.jpg)
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You need to know the following knowledge to solve this word math problem:
- algebra
- expression of a variable from the formula
- arithmetic
- cube root
- third power
- solid geometry
- sphere
- surface area
Units of physical quantities:
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