Answer:
r = 3.5 ft
Explanation:
The circumference of a circle is the distance around the circle. The seat accommodates 11 people . Each person has 2 ft of space along the edge of the table .
Therefore ,
circumference = 11 × 2 = 22 ft
circumference = 2πr
where
r = radius
circumference = 2πr
22 = 2 × 22/7 × r
22 = 44r/7
multiply both sides by 7/44
r = 22 × 7/44
r = 7/2
r = 3.5 ft