Therefore, the value of C should be (11/2)^2
<span>To square a fraction, take the square of the numerator and put it over the square of the denominator. So since 11^2=121 and 2^2=4, (11/2)^2
(11)^2/(2)^2=121/4
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That is the exact representation of the constant π. By definition:
π=C/d, where C is the circumference of a circle and d is the diameter.
<span>NCn is always equal to 1. </span>
