Question

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Answer 1

the number π is a mathematical constant defined as the ratio of a circle's circumference to its diameter, it how has various equivalent definitions and appears in many formulas in all areas of mathematics and physics.

1 radian = 1 radius arc length.

=r/2πr=1/R

=R/1=2πr/r

=R=2π

=360=2π radian.

Answer 2

$\huge\star{\underline{\mathfrak{Answer}}}$

Pi

• It is the circumference of the circle divided by the diameter

PROOF...

Radian is a way of measuring an angle.

The circumference of a circle = 2(pi)r

The no. of radians in a circle is (2(pi)r)/r = 2(pi).

So 360 degrees = 2(pi) radians.