Question 233826: When the radius of a circle is increaded by 5, its area is increased by 32pie. What is the radius of the original cirlce? Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! When the radius of a circle is increaded by 5, its area is increased by 32pie. What is the radius of the original cirlce?
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10r = 7
r = 0.7 units
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Check: 5.7^2 - 0.7^2 = 32 so it's correct.
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PS It's pi, the Greek letter, not pie, the dessert.
