Can someone help on this please, i don’t under stand

Acircular city park has a sidewalk directly through the middle that is 111 - feet long. if each bag of fertilizer covers 50 square feet, then determine how many bags of fertilizers the parks and recreation department needs to use to cover the circular park. ignore all the sidewalks around and through the park.

Which segments are congruent? o jn and ln o jn and nm o in and nk onk and nm

Can someone me i’m confused. will give brainliest and a whole bunch of points