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If you triple the radius of a circle . . .
-- You should not expect anything to happen. Those around are likely to remain
completely unaware that you have done anything to your circle.
-- You wind up with a circle that's three times as big as it used to be.
-- The diameter of the circle is three times the original diameter.
-- The circumference of the circle is three times the original circumference.
-- The area of the circle is nine times the original area.
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What happens to the diamenter of a circle if you triple the radius?
It will be twice the size of the tripled radius
What happens if you triple the radius in a circle?
nothing you will just just get the radius in 3 circles.
If you triple the radius of a circle what happens to the area?
The result is 9 time the original.
What happens to the circumference of a circle if you triple the radius?
Since circumference is proportional to the diameter (the proportionality is the definition of the irrational number pi) and the radius is just twice the diameter, if you triple the radius, you also triple the circumference.
What happens to the area of a circle when you triple the radius?
As the area of a circle is pi*radius2 the increase in area is a factor of 32. So tripling the radius gives an increase in area by a factor of 9.
