alrighty we can see that each of those curves from K to N and from N to L are just 1/4 of the circumference of the circle the circles have centers at J and M
so
we have 2 of those 1/4 circumfernce so a total of 2/4 or 1/2 circumference
circumference=2 times pi times radius radius=JK=JN=NM=ML=7 we want half so perimiter=1/2 times 2 times pi times 7 we are given pi=22/7 so perimiter=1/2 times 2 times 22/7 times 7 perimiter=2/2 times 22 permiter=22cm
the perimiter is 22
wait, I forgot abou the bottom part (KL) that's just twice the radius or 2*7=14 22+14=36 the perimiter is 36cm
every answer equals 98 when you use the first equation but the only one that works with the second equation is C (works meaning when you plug in the answers from the answer choices)
