Solve the Equation for the Indicated Variable $A = 2 \pi a ^ { 2 }$

question 420

Multiple Choice

Solve the equation for the indicated variable. Assume no denominator is 0.
- $A = 2 \pi a ^ { 2 }$ , for a

• A) \(a = \frac { \pm A \sqrt { 2 \pi } } { 2 \pi }\)
• B) \(a = \frac { \pm \sqrt { 2 \pi \mathrm { A } } } { 2 \pi }\)
• C) \(a = \sqrt { 2 \pi \mathrm { A } }\)
• D) \(a = \frac { \pm \sqrt { \mathrm { A } \pi } } { 2 }\)

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