Given the formula A = 2πr + h, solve for r.
A. r = A (2πr) - h
B. r = A+h/2π
C. r = A-h/2π
D. r = A-2π/h
To solve for r, we need to isolate it on one side of the equation. We can do this by subtracting h from both sides of the equation and then dividing by 2π.
Starting with the formula: A = 2πr + h
Subtracting h from both sides of the equation:
A - h = 2πr
Dividing both sides by 2π:
r = (A - h) / 2π
Therefore, the answer is option C. r = A - h / 2π