Respuesta :
Answer:
\sqrt(8.99
Step-by-step explanation:
A=pi r^2
28.26=pi r^2
Answer:
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
