Q. Find the radius of circle whose area is 616cm2.
Identify formula for area: Identify the formula for the area of a circle.The formula for the area of a circle is A=πr2, where A is the area and r is the radius.
Set up equation: Set up the equation with the given area.We know the area A=616cm2, so we can write the equation as 616=πr2.
Solve for r2: Solve for r2.To find r2, we divide both sides of the equation by π: r2=π616.