The Formula to find the Area of a circle using the radius is:

r = 8
So:



And you get about 201.06193
So, the area of a circle with a radius of 8 is about 201.06
Hope this Helps :)
Answer:
20.4131
Step-by-step explanation:
You need to have only 4 decimal places after , last decimal being approximated
Answer: You need to put the same shape as it shows there on the top.
Step-by-step explanation: I hope this helped you.
Answer:
if im correct it should be 40
Step-by-step explanation:
Answer:
a = 16 and b = 2
Step-by-step explanation: