A circular pool 2 meters in diameter is in the middle of a 5 meter by 5 meter square of gravel.What is the area actually covered by gravel?
A = pi * r^2
A = 3.14 * 1^2
A = 3.14 sq. meters
A = 5 * 5
A = 25 square meters
25 - 3.14 = _______ square meters