Area of a Circle

Thank you Maddie that was a really good answer.

Welcome to Web2.0calc forum!

Just remember to give the units.  

There were no units given in the question so the best you can do is unit^2.

Well, the formula for the area for a circle is:

a= π•r².

So, you have to divide the diameter in two to get the radius, which would be one (2÷1= 1). Then, square the radius (1²= 1). Then, multiply that by pi (1 x 3.14= 3.14) and then, you have the area!