Answer: the circumference of the yellow circle is 43.96 ft
Step-by-step explanation:
The perimeter of a plane shape is the total distance around the shape. The circumference of a circle is the same as its perimeter.
The formula for determining the circumference of a circle is expressed as
Circumference = 2πr
Where
π is a constant whose value is 3.14
r represents the radius of the circle
The diameter of the purple circle is 9 ft. Since both circles have a common center, the diameter of the yellow circle would be
9 + 2.5 + 2.5 = 9 + 5 = 14 ft
Radius = diameter/2
Radius of yellow circle = 14/2 = 7 ft
Circumference of yellow circle is
2 × 3.14 × 7 = 43.96 ft
