Question

Find the circumference of a circle with an area of 28.2

Answer 1

Answer:

Formula for area of  circumference of circle:

   A=πr^2

Formula for circumference of circle:

   C=2πr

Step-by-step explanation:

A=π^2

28.2=3.12*r^2

28.2/3.12=r^2

9=r^2

taking square on both side,

we get,

r=3

Now, we will find the C

C=2πr

C=2*3.14*3

C=18.84

Therefore, the circumference of circle is 18.84