answer for points and brainliest!

Answer:
65.94 feet
Step-by-step explanation:
To find the circumference of a circle with a diameter of 21 feet, you can use the formula:
Circumference = π * diameter
1. First, identify the diameter given in the question, which is 21 feet.
2. Substitute the diameter into the formula: Circumference = π * 21 feet
3. Since the value of π (pi) is approximately 3.14, multiply it by 21 feet to find the circumference.
4. Calculate: Circumference = 3.14 * 21 feet = 65.94 feet
Therefore, the circumference of a circle with a diameter of 21 feet is approximately 65.94 feet.