# Chemical parison

The blown parison (with shape of a sphere) have a volume 1.5 liters. What is its surface?

Result

S =  633.69 cm2

#### Solution:

$V = \dfrac43 \pi r^3 \ \\ V = 1.5 \ l = 1.5 \ dm^3 \ \\ r = \sqrt[3]{ \dfrac34 \dfrac{ 1.5 }{ \pi } } = 0.7101 \ dm = 7.101 \ cm \ \\ S = 4 \pi r^2 = 4 \pi r^2= 633.69 \ cm^2 \ \\$

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