The formula for the area of a circle is A = πr^2, where r is the radius of the circle.
Since the diameter of the quarter is 1 in, the radius is half of the diameter, which is 0.5 in.
Plugging in the radius into the formula, we get:
A = π(0.5)^2
A = π(0.25)
A ≈ 0.785 in^2
Therefore, the area of the circle on the paper is approximately 0.785 square inches.
The diameter of a quarter is about 1 in. You trace around the edge of the quarter on a sheet of paper. What is the area of the circle on the paper?
3 answers
ok what's that rounded to the nearest 10th
Rounded to the nearest tenth, the area of the circle on the paper is 0.8 square inches.
1 answer