A rectangular exercise mat has a perimeter of 36 feet. The length of the mat has a perimeter of 36 feet. The length of the msg is twice the width . What is the area, in square feet of the mat?

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