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If you double the radius of a circle, you also double its circumference.
It's now 200% of what it was originally ... an increase of 100% .
See rigorous proof below.
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Let radius = r
Circumference = 2πr
Double the radius:
New radius = 2r
New circumference = 4πr
Increase in circumference = 4πr - 2πr = 2πr = (2πr/2πr) X 100%
=100%
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What happens to the circumference of a circle when the radius is increased by 50 percent?
The circumference is directly proportional to the radius. So increasing the radius by 50% causes the circumference to also increase by 50%.
What is the circumference of a circle when the radius is 2.3 m?
4.6m. The circumference is double the radius.
As the diameter of the circle increases what happens to the circumference?
The circumference of a circle increases with an increase in the radius as it is directly proportional its radius.
How do find the circumference of a circle if you have the radius?
easy you just double it. Additional answer No, that's incorrect. If you double the radius you get the diameter. To get the circumference you multiply the radius by 2 then by 3.142. 3.142 is known as pi
How do you find the circumference of a circle with the radius of 22.3MM?
Double the radius and multiply by pi
