Answer:
21.98 square inches
Step-by-step explanation:
The formula is πd which means pi times the diameter. The value of pi is given (3.14) and the diameter is 7.
Multiply 7 times 3.14 to get 21.98
21.98 inches squared
For the formula you plug in the diameter in where it says d.
You then multiply d (which = 7) by pi (which = 3.14)
when you do that you get 21.98 in. squared
I hope this helps
