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Circumference = 2 times pi times radius. Circumference of a circle is the distance along the edge of the circle. Radius is the distance from the center of the circle to the edge. Pi is the ratio that was derived from relationships in dimensions of circles. It is an irrational number; its value is approximately 3.1416
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What is C equals 2r for r?
If: C = 2r Then: r = C/2
How do you solve 2r-1 equals 9?
2r-1=9 2r =10 r =5
What is 32 plus 3r equals 82-2r?
A math problem
What is the circumference of a circle with a 14 foot radius?
You can use the following formula: C=2r∙3.14 Therefore C=2∙14∙3.14 Find the product of 2 and 14 which equals 28. Now C=28∙3.14 Find the product of 28 and 3.14 which equals 87.92. Therefore the circumference is 87.92ft.
R plus s equals 4 2r plus 3s equals 8?
r + s = 4 and 2r + 3s = 8 multiply the first equation by 2 giving 2r + 2s = 8 subtract this from the second equation giving s = 0 So r = 4 and s = 0.
What is C equals 2r for r?
If: C = 2r Then: r = C/2
What fraction of a circumference equals the radius?
2r(pi)=C where C is circumference. Therefore the radius equals C/2(pi)
How do you solve 2r-1 equals 9?
2r-1=9 2r =10 r =5
What is 7-2r equals 13?
If: 7 -2r = 13 Then: r = -3
What is the answer to -7 equals 7-2r?
If: -7 = 7-2r Then: r = 7
How do you do absolute 2r plus 9 absolute equals 5?
|2r + 9| = 5 So 2r + 9 = 5 or 2r + 9 = -5 so that 2r = -4 or 2r = -14 r = -2 or r = -7
What is 9r-5r-6r equals?
-2r
What is r2 equals -2r plus 35?
r -31
What is the answer to the problem 2r-5 equals 11?
r=8
How do you solve 10 plus r equals 2r?
10+r = 2r Subtract r from both sides:- r = 10
What is 32 plus 3r equals 82-2r?
A math problem
How do you find the radius of a circle if the circumference is 68?
C (Circumference) = 3.14 (pi)*D (diameter) r (radius) = 0.5D and D = 2r So circumference can also be C=3.14*2r Then, solve 68 = 3.14*2r to get r = 10.83
