Question

The ratio of circumference to a circle to its diameter is:
A) 2 pi radian B) pi C) pi/2 radian D) one steradian

Please give explanation with the answer.

Answer 1

THE CIRCUMFERENCE OF A CIRCLE = 2πR

THE DIAMETER OF A CIRCLE = 2R

THE RATIO OF THE CIRCUMFERENCE AND DIAMETER OF CIRCLE -

=2πR/2R

=π (ANS)

B.) π or pi (ANS)....

HOPE IT HELPS YOU.....,.......

Answer 2

circumference of the circle=2πr

diameter of the circle =d=2*radius

circumference of the circle /diameter of the circle

=2πr/d

=πd/d

=π

so option (B) is the right answer