sa=2*3.14*4*4+2*3.14*4*10

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Solution for sa=2*3.14*4*4+2*3.14*4*10 equation: 


Simplifying
sa = 2 * 3.14 * 4 * 4 + 2 * 3.14 * 4 * 10

Multiply 2 * 3.14
as = 6.28 * 4 * 4 + 2 * 3.14 * 4 * 10

Multiply 6.28 * 4
as = 25.12 * 4 + 2 * 3.14 * 4 * 10

Multiply 25.12 * 4
as = 100.48 + 2 * 3.14 * 4 * 10

Multiply 2 * 3.14
as = 100.48 + 6.28 * 4 * 10

Multiply 6.28 * 4
as = 100.48 + 25.12 * 10

Multiply 25.12 * 10
as = 100.48 + 251.2

Combine like terms: 100.48 + 251.2 = 351.68
as = 351.68

Solving
as = 351.68

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Divide each side by 's'.
a = 351.68s-1

Simplifying
a = 351.68s-1

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