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If the Circumference is 6 ft. What is the radius?
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High School Teacher
We are given the circumference of a circle. We are asked to find the radius.
We will use the formula Circumference = 2pi(radius)
=> Substitute 3.14 for pi, and 6 for C
=> 6 = 2(3.14)r
=> 6 = 6.28r
=> .955 =r
=> The radius is approximately .96 ft.
Posted by academicsfirst on June 21, 2011 at 11:50 PM (Answer #1)
To find the radius of a circle using the given circumference we use the formula for finding Circumference.
Using 3.14 for pi and 6 for the Circumference, we solve for r (radius).
6=2(3.14)r (multiply 2 times pi)
6=6.28r (divide each side of the equal sign by 6.28)
r≈.955 (the result is that r is approximately .955)
Rounding to the nearest hundredths place the radius is about .96 ft.
Posted by sweetteach on June 22, 2011 at 5:06 AM (Answer #2)
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