The area of a circle is given by the formula A = πr^2, where r is the radius of the circle.
Since the diameter is given as 10 millimeters, the radius is half of that, which is 5 millimeters.
Substituting the value of the radius into the formula, we have A = 3.14 * 5^2 = 3.14 * 25 = 78.5
Therefore, the estimated area of the circle is 78.5 square millimeters.
What is the area of a circle with a diameter of 10 millimeters? Estimate the area to the tenths place using 3.14 for π.
1 answer