A) If the area of a circle is
28.26 cm?, what is the radius of the circle?
To find the radius of the circle, we first need to calculate the radius using the formula for the area of a circle:
Area = π * radius^2
Given that the area is 28.26 cm^2, we can plug this value into the formula and solve for the radius:
28.26 = π * radius^2
To isolate the radius, we divide both sides by π:
radius^2 = 28.26 / π
radius^2 = 9
Taking the square root of both sides, we find:
radius = √9
radius = 3 cm
Therefore, the radius of the circle is 3 cm.