Question

The ratio of circumference to the area of a circle of radius r units is​

Answer 1

In geometry, the area enclosed by a circle of radius r is πr2. Here the Greek letter π represents the constant ratio of the circumference of any circle to its diameter, approximately equal to 3.14159

Explanation:

hope it will help you buddy

Answer 2

${\tt { {\underline{\underline{\huge{ AɴSᴡEʀ:}}}}}}$

Given :-

• Radius = r

To Find:-

• Ratio of circumference and area

Solution:-

Let the Circumference be C and Area be A

→C/A = 2πr/πr²

→C/A = 2 × π × r/ π × r × r

→C/A = 2 × r/ r × r

→C/A = 2/r

Hence:-

Ratio => 2:r