Let’s see, if my memory in geometry is correct, to arrive at the volume of a cylinder, you would need to take the square root of the base’s radius, multiply it by Pi, and then multiply that by the height of the cylinder. Let’s say you have the radius in cell A1, and the height in cell A2.

The formula for calculating the volume of a sphere in Excel But Excel allows us to use an effective solution: In the cell B2 we write down the formula for calculating the volume of a sphere in one line: =(4/3)*PI()*A2^3 (A2 is the cell reference).

Type “=Diameter/2” without quotes in cell A1, replacing “Diameter” with the known diameter of the circle. Press “Enter” to calculate the radius in the same units used for diameter.

The area of a circle is given by Pi*Radius^2 where Pi is a constant approximately equal to 3.14159265. Excel has this constant built in as a function with no parameter inputs PI(). The POWER function will take any number and raise it to the power of any other number.

What is the PI Function in Excel? The PI Function in Excel returns the mathematical constant “pi.” To recap, PI is the ratio of a circle’s circumference and its diameter. Often, we would use the PI Function in Excel, especially when our business is required to do geometric calculations.

The Microsoft Excel PI function returns the mathematical constant called pi, which is 3.14159265358979. It can be used as a worksheet function (WS) in Excel. As a worksheet function, the PI function can be entered as part of a formula in a cell of a worksheet.

Use the formula. The circumference of a circle is found with the formula C= π*d = 2*π*r. Thus, pi equals a circle’s circumference divided by its diameter. Plug your numbers into a calculator: the result should be roughly 3.14.

rational

In mathematics, whole numbers are the basic counting numbers 0, 1, 2, 3, 4, 5, 6, … and so on. 17, 99, 267, 8107 and 999999999 are examples of whole numbers. Whole numbers include natural numbers that begin from 1 onwards.

The number 3/5 is a rational number. It is a fraction that is made from two integers, 3 and 5.

rational number

Numerator. This is the number above the fraction line. For 9/3, the numerator is 9. It’s an integer (whole number) and a proper fraction.

In mathematics, the irrational numbers (from in- prefix assimilated to ir- (negative prefix, privative) + rational) are all the real numbers which are not rational numbers. That is, irrational numbers cannot be expressed as the ratio of two integers.

1 Answer. By definition, a rational number is a number q that can be written as a fraction in the form q=a/b where a and b are integers and b≠0. So, 1/3 is rational because it is exactly what you get when you divide one integer by another.