A - - r2- rewrite the formula - - as a subject-

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Factorisation Using Algebraic Identities

A = π r2, r...

Question

A = $π r^{2}$ , rewrite the formula ' $π$ ' as a subject.

A = π r^{2}

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π

= A

r^{2}

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π

\frac{A}{r^{2}}

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A = r^{2}

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