Question

find the radius of the circle with the following areas 28.3 ​

Answer 1

Then, substituting the formula for diameter into that equation, we get

C = 2∏r

That is where many people would start on ths problem.

Now, divide both sides by 2∏,

r = C / (2∏)

So, C=28.3 m

∏ = 3.14

what is r ?

r = 28.3 / (2*3.14)

r = 4.5 m (rounded)