If you draw a circle and then create a square around it so all four sides touch, pi is the number that represents the ratio of the sizes of the two shapes.
Chat with our AI personalities
It means pi to the power of two. pi square = pi * pi
The value of pi is found by dividing the circumference of a circle by its diameter and pi is an irrational number which means it can not be expressed as a fraction.
the answer to that is easy pi equals 3.141592654 so that means the fifth number is 5
no but i can tell you the numbers. 3.141592
Volume= 4/3 * pi * r^3 (where * means multiply and ^3 means cubed So for a sphere of radius 9 Vol = 4/3 * pi * 729 = pi * 972 = 3,053.628 cubic units. Surface area = 4 * pi * r^2 (where ^2 means squared So for a sphere of radios 9, the SA = 4 * pi * 81 = pi * 324 = 1017.876 square units