The formula with r as the subject is:r = √(A / π²)
The formula A = π²r² relates the area of a circle (A) to its radius (r). To make r the subject of the formula, we need to isolate it. Here's how
Divide both sides by π²:
A / π² = r²
Take the square root of both sides:
√(A / π²) = √(r²)
Simplify the right side:
√(A / π²) = r
Therefore, the formula with r as the subject is: r = √(A / π²)
Complete question
MAKE R THE SUBJECT OF THE FORMULAR A = π² 2