Question

What is the ratio of the area of a circle with radius r to the circumstances of a circle

Answer 1

`ratio=(r)/(2)`

Explanation:

The correct question is

What is the ratio of the area of a circle with radius r to the circumference of a circle

we know that

The area of the circle is equal to

`A=\pi r^(2)`

The circumference of the circle is equal to

`C=2\pi r`

To find out the ratio, divide the area by the circumference

`ratio=(A)/(C)=(\pi r^2)/(2\pi r)`

Simplify

`ratio=(r)/(2)`