if c + 12r what is the area of a circle

To find the area of a circle, you need to use the formula A = πr^2, where A is the area of the circle and r is the radius.

If c + 12r, there is not enough information given to calculate the area of the circle. You will need to know the value of either the circumference (c) or the radius (r) in order to calculate the area.