anonymous
  • anonymous
what happens to the area of a circle if the radius is increased by 10% ?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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wolf1728
  • wolf1728
The area would increase by (1.1)²
wolf1728
  • wolf1728
The reason? The area of a circle = PI*r² Let's suppose the radius is 1. If we increase that by 10% the area increases by r² So, the area gets larger by a factor of (1.1)² Similarly, what happens to the volume of a sphere if the radius is doubled? In the formula, the radius of the sphere is cubed, so the volume of the sphere is also cubed. So, doubling a sphere's radius increases the volume by a factor of 2³ or 8 times.
goformit100
  • goformit100
First of all @dsquirrell1972 : A Warm Welcome to 'Open Study'. Please Read CoC (compulsory to read by all "Open Study" users) : http://openstudy.com/code-of-conduct

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