What are the degrees in a, b, and c?

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

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

I'm marking the brainliest and it's 15 points