The relationship has a diameter of 22 cm. Derive the value of the radius that you will use in the formula to find the area of the circle.
The radius of a circle is always half of its diameter.
Given that the diameter of the circle is 22 cm, the radius will be:
Radius = Diameter / 2
Radius = 22 cm / 2
Radius = 11 cm
Therefore, the radius that you will use in the formula to find the area of the circle is 11 cm.