Question

the curves in the below image are perfect semicircles if the straight line AB measures 18cm what is the length (in m) of the curved line of the figure
a) 4.5π
b) 9π
c) 18π
d) 36π​

Answer 1

Answer:

i think 4.5

beacuse if the curve of a will in the center so it will be 9 but it is not in the center