Answer:
20π
Step-by-step explanation:
Area = πr^2
100π = πr^2
solve for r and r = 10
circumference of a circle is 2πr
therefore 2π×10=20π in
What you will need to do here is take 180 and divide it by 210 which will give you .<span>85714285714
And if you need to round that to the nearest tenth you will get .9 </span>
Uhh... what are the options?
Here's some possible ones:
0.2
1/5
