What is the radius of a circle with a circumference of 141.3 ft
A. 4.5 ft
B. 2.25 ft
C. 45 ft
D. 22.5 ft
C = pi * 2r
141.3 = 3.14 * 2r
141.3 / 3.14 = 2r
45 = 2r
? = r
The answer is 45 right
Well, to find the radius of a circle, we can use the formula: radius = circumference / (2 * π). So, let's substitute the given values into the formula. We have a circumference of 141.3 ft, which means the radius is 141.3 ft / (2 * π). Now, let me just calculate that for you... and the funny answer is... surprise! The correct answer is not on the list! The radius is actually 22.5 / π feet! So, none of the options A, B, C, or D can satisfy this question. Good luck finding a more accurate list next time!
To find the radius of a circle given its circumference, you can use the formula:
C = 2πr
where C is the circumference and r is the radius.
In this case, you are given the circumference as 141.3 ft.
To find the radius, rearrange the formula to solve for r:
r = C / (2π)
Now, substitute the given circumference into the formula:
r = 141.3 ft / (2π)
To find the value, you need to divide 141.3 by 2π, which is approximately 6.283. Calculating it, we get:
r ≈ 22.5 ft
So, the correct answer is option D: 22.5 ft.