Megan finished the scarf. it is 5 6/12 feet in length. she finds a mistake in her knitting and unravels 2 4/12 feet to correct the mistake

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