Hadley's parents want to build a fence around her play area. The perimeter of the play area is 184 feet. The width is two times the length. Find the length and width of the play area. Use the formula for the perimeter of a rectangle as one of your equations.

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