Answer:
Flower bed A has circumference = 31 feet, area = 79 feet²
Flower bed B has circumference = 38 feet, area = 113 feet²
Explanation:
* Lets revise the rules of the circumference and the area of the circle
- The circumference of the circle = 2πr
- The Area of the circle = πr²
- r is the radius of the circle and it is half the diameter of the circle
# Flower bed A has a diameter 10 feet
∵ The radius = 1/2 the diameter
∴ The radius = 1/2 × 10 = 5 feet
∵ The circumference = 2πr
∴ The circumference = 2 × π × 5 = 31.42 ≅ 31 feet
∵ The area = πr²
∴ The area = π (5)² = 78.54 ≅ 79 feet²
* Flower bed A has circumference = 31 feet, area = 79 feet²
# Flower bed B has a radius 6 feet
∵ The circumference = 2πr
∴ The circumference = 2 × π × 6 = 37.70 ≅ 38 feet
∵ The area = πr²
∴ The area = π (6)² = 113.10 ≅ 113 feet²
* Flower bed B has circumference = 38 feet, area = 113 feet²
* These answers not in the choices