Estimate the radius of the object

Answer:
r = 1.41 mm
Step-by-step explanation:
Given that,
The circumference of the flower, C = 8.9 mm
We need to find its radius. We know that,
Circumference, [tex]C=2\pi r[/tex]
Where
r is the radius of the object
[tex]r=\dfrac{C}{2\pi}\\\\r=\dfrac{8.9}{2\pi}\\\\r=1.41\ mm[/tex]
So, the radius of the object is equal to 1.41 mm.