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Pi is a letter in the Greek alphabet used to represent the value 3.1416. When this value is multiplied by the squared value of the radius of a circle (half the distance across the circle times itself), the area inside the circle is then known. The diameter of a circle (the full distance across, or two times the radius) can also be multiplied by pi to give the circumference (distance around the circle).
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What does pi square mean?
It means pi to the power of two. pi square = pi * pi
Where was pi found?
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.
What is the fifteenth digit of pi?
the answer to that is easy pi equals 3.141592654 so that means the fifth number is 5
Can you tell me what pi means?
no but i can tell you the numbers. 3.141592
What is the volume and surface area of a sphere with a radius of 9?
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
