Question

in the formula of area of circle Pi R Square the numerical coefficient of the expression pie R square is​

Answer 1

Answer:

22/7 r x r. ...........

Answer 2

Answer:

The usual definition of pi is the ratio of the circumference of a circle to its diameter, so that the circumference of a circle is pi times the diameter, or 2 pi times the radius. ... This give a geometric justification that the area of a circle really is "pi r squared".

In geometry, the area enclosed by a circle of radius r is π r2. Here the Greek letter π represents a constant, approximately equal to 3.14159, which is equal to the ratio of the circumference of any circle to its diameter.

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