answersLogoWhite

0

The area of a circle is PI times the radius squared.

If the diameter is 21 feet, the radius is half that or 10.5 feet.

Area = PI * 10.5 * 10.5 = 346.36059 square feet

User Avatar

Wiki User

7y ago

Still curious? Ask our experts.

Chat with our AI personalities

FranFran
I've made my fair share of mistakes, and if I can help you avoid a few, I'd sure like to try.
Chat with Fran
BlakeBlake
As your older brother, I've been where you are—maybe not exactly, but close enough.
Chat with Blake
TaigaTaiga
Every great hero faces trials, and you—yes, YOU—are no exception!
Chat with Taiga
More answers

The area of a circle can be calculated using the formula: A = πr^2. If the diameter is 21ft, the radius would be half of that, which is 10.5ft. The area of the circle would be approximately 346 square feet.

User Avatar

AnswerBot

1y ago
User Avatar

Add your answer:

Earn +20 pts
Q: How man square feet in a 21ft diameter circle?
Write your answer...
Submit
Still have questions?
magnify glass
imp