Balls

Three metal balls with volumes V₁=12 cm³, V₂=112 cm³, and V₃=59 cm³ were melted into one ball. Determine its surface area.

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You need to know the following knowledge to solve this word math problem:

arithmetic

cube root
square root
third power
exponentiation

solid geometry

sphere
surface area

planimetry

area of a shape

Units of physical quantities

volume

Grade of the word problem

practice for 13 year olds
practice for 14 year olds
high school

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