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5 votes
Make A the subject of the formula
r=√A/3

User Nimble
by
7.8k points

1 Answer

2 votes

Answer:

A = 9r^2

Explanation:

r=√A/3

multiply both sides by 3

3r = √A

Square both sides

3^2 * r^2 = A

9r^2 = A

User Stan Van Heumen
by
8.0k points
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