IN MATH: 1. n. the ratio of a circle's circumference to its diameter (symbol is ). EX. The area formula for a circle states: , area equals the product of pi and the square of the radius. EX. When written as a decimal, is nonterminating. One decimal expression for

is 3.14159265358979323846264338327950288419 71693993751058209749445923078164062...

Circle
Circles are describe in terms of their radius or diameter.
The circumference is the perimeter of a circle.
The circumference,
    in terms of radius, or
    in terms of diameter,
The area,
    in terms of radius, or
    in terms of diameter,
 
Using a radius of:  
    The ( or ) is:
    square units or units.
Using a diameter of:  
    The ( or ) is:
    square units or units.

IN ENGLISH: 1. as defined above.

APPLICATION: See list 140.

1. State the formula for the volume of a sphere.

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