Ronald calculated that the saucer for his teacup has an area of 22.8906 square centimeters. What is the saucer's circumference?
Question
Ronald calculated that the saucer for his teacup has an area of 22.8906 square centimeters. What is the saucer's circumference?
Solution
The area of a circle is given by the formula A = πr², where r is the radius of the circle. Given that the area of the saucer is 22.8906 square centimeters, we can solve for r:
22.8906 = πr² r² = 22.8906 / π r = sqrt(22.8906 / π)
Once we have the radius, we can find the circumference of the saucer using the formula C = 2πr. Substituting the value of r we found:
C = 2π * sqrt(22.8906 / π)
This will give us the circumference of the saucer.
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