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과목 둘러보기›Algebra 1 — Semester 1
Algebra 1 · Semester 1 Michigan Standards 12A-12E
MediumCalc

Solve for r: A = πr²

Ar = A/π
Br = √(A/π)
Cr = A²/π
Dr = π/A
Explanation
📌 A = πr² → r² = A/π → r = √(A/π)
Divide both sides by π, then take square root.

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