so the 1st on is the one on the left, middle is right and the 3rd one is the right one
The circumference of a circle is (2π · the circle's radius).
The length of a semi-circle is (1π · the circle's radius) =
(π · 14.8) = 46.5 (rounded)
(The unit is the same as whatever the unit of the 14.8 is.)
the answer is the forth one treatment of cancer
