This formula will return the value of pi times the diameter of the circle, which is the circumference. 3. Creating a sine or cosine wave. You can also use the PI function in Excel to create a sine or ...

Excel will return the PI divided by 2, which gives the result of 1.570796. Type into the cell =PI()*(A2^2) and press enter. Excel will return the result 50.26548 .

If you want the argument in degrees, you need to multiply that number by PI()/180 or use the RADIANS function to convert it to radians. So you have 2 formulas to apply: =COS(RADIANS(number)) and ...

Type "PI()", which is equivalent to "3.14159265358979" in an Excel formula. Type the remainder of your formula. For example, to calculate the circumference of a circular area with a radius of 15 ...