To calculate the area of a circle you can use the PI function together with the exponent operator. Area C 2 4p in terms of circumference C. The area can be found when given the diameter by first finding the radius.
Circumference can be used to find area.
It doesnt matter whether you want to find the area of a circle using diameter or radius - youll need to use this constant in almost every case. Check all that apply. In the example shown the formula in C5 copied down is. Using the formula for the area of an equilateral triangle and side length 10.