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56.5=(2)(3.14)(r)
We simplify the equation to the form, which is simple to understand
56.5=(2)*(3.14)*(r)
Reorder the terms in parentheses
multiplication of parentheses
56.5=(+6.28)*(r)
Reorder the terms in parentheses
multiplication of parentheses
56.5=(+6.28r)
Remove unnecessary parentheses
56.5=+6.28r
We move all terms containing r to the left and all other terms to the right.
-6.28r=-56.5
We simplify left and right side of the equation.
-6.28r=-56.5
We divide both sides of the equation by -06.28 to get r.
r=8.9968152866242
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