Hi there!
Let's start with the circumference. The formula to find the circumference of a circle is C = pi x diameter. Using this formula, we know that the circumference is equal to 7 pi cm. Then, the formula to find the area of a circle is A = pi x r^2. Using this formula, we know that the area is equal to 12.25 pi cm^2.
Hope this helps!! :)
If there's anything else that I can help you with, please let me know!
