(16pi) if explanation needed, 24* 2* pi= 48pi
48 pi/ 3= 16pi
The correct equation is 8.7 + b = 54.6
because it is given that measure of side a is 8.7cm, in all other equations the values of a is different.
from the first equation we can find the value of b, that is
b = 54.6 - 8.7 = 45.9
so, value of b is 45.9cm
It’s easy pi is equal to 3.14 so your answer is c
nice they should <em><u>gonnnn</u></em>