An equation is given.
A=4π r^2
Solve the equation for r .

A) r=4πA/2
B) r=A/2π
C) r=√A/4π
D) r=√4π/A

Hello There. The correct answer to this is B. Because it shows that A = 4pr2 We need divide each term of 4pr2 = A r2 A-4p Then we need to do is Take the square root of both sides of the equation to eliminate the exponent on the left side. r = + A-4p Then completed of the solution is the result of both the positive and negative portions of the solution.

Hope It Helps! Good Luck.

ItsNobody

eve and marks ratios are equivalent

step-by-step explanation: