Question

The ratio of the circumference of a circle to its diameter is

A
always \piπ:1.

B
equal to the area of the circle.

C
dependent on the length of the radius.

D
different depending on the size of the circle.

Answer 1

always piπ:1. "A"

Explanation:

circumference of a circle= 2πr

diameter of a circle=2r

ratio of circumference to radius=2πr/2r

=π/1 or π:1