Q. When was the international Pi day observed?

A
Mrach 1
B
March 5
C
March 14
D
March 17
Solution:

Pi Day is an annual celebration of the mathematical constant p. Pi Day is observed on March 14 since 3, 1, and 4 are the first three significant digits of p. In 2009, the United States House of Representatives supported the designation of Pi Day.

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