Jesse needs 8 1/4 feet of chain to complete an outdoor project he has two small pieces measuring 2 1/8 feet and 3 3/4 feet how many feet of chain does Jesse need to purchase

Acentral angle measuring 160 degrees intercepts an arc in a circle whose radius is 4. what is the length of the arc the circle formed by this central angle? round the length of the arc to the nearest hundredth of a unit. a) 4.19 units b) 6.28 units c) 12.57 units d) 12.57 square units