The circumference of a circle is 87.92 millimeters. What is the circle's radius?
Use 𝜋 ≈ 3.14 and round your answer to the nearest hundredth.
The formula to find the circumference of a circle is C = 2πr, where C is the circumference and r is the radius of the circle.
Given that the circumference of the circle is 87.92 millimeters, we can set up the equation as follows:
87.92 = 2πr
To solve for the radius, we need to isolate r on one side of the equation. We can do this by dividing both sides of the equation by 2π:
87.92 / 2π = r
We can now use the approximate value of π as 3.14 and calculate the radius:
r ≈ 87.92 / (2 * 3.14)
r ≈ 87.92 / 6.28
r ≈ 13.99
Rounded to the nearest hundredth, the circle's radius is approximately 14.00 millimeters.