The area is 28.26. What is the radius,

18.84

Step-by-step explanation:

the area is already stated so,

28.26

=

π

⋅

r

2

28.26

π

=

r

2

8.995437

=

r

2

√

8.995437

=

r

2.999239

=

r

we have found that the radius is 2.999239 and the formula for circumference of a circle is:

π

⋅

d

2.999239

⋅

2

=

5.99848

(multiply by 2 to get the diameter)

5.99848

⋅

π

=

18.84478

so the answer is 18.84