Answer:
0.999 units
Step-by-step explanation:
D=

D=0.9994930426
Answer: she forgot to multiply the radius by 2 in the formula .
Step-by-step explanation:
Answer:
The answer is 8x.
Step-by-step explanation:
It is 8x.
EXCEPT,
Is it
or 
If it is
then the answer is 
PLEASE MARK BRAINLIEST