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,
Where
r is the radius of the object
So, the radius of the object is equal to 1.41 mm.
it's answer is
volume of a cone = 21
Answer:430
Step-by-step explanation:78 times 3 is 430