Question

What is the approximate area of a circle with the diameter of 20cm in square centimeters (use 3.14 for pie(

Answer 1

314cm

Explanation:

the area formular for a circle is a=pi(r)^2. Using this information we can plug in the numbers...

3.14(10)^2. Next square 10 to get 3.14*100. Then you get 314 which is the answer. The reason I used 10 is because the diameter is half of the radius so half of 20 would be 10.