Answer:
B. -pi/6
Step-by-step explanation:
I hope I helped you^_^
hope this is correct
2^0+2^1+2^2+...+2^49
1=2^0
2=2^1
4=2^2
8=2^3
and so on
B :it is the ratio of the area of the circle to the area of the square from a cross section.
had this question on ed2020 and got it right^
