Seudónimo Seudónimo
  • 01-06-2018
  • Mathematics
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Help please
2. By what factor does the area change if the radius is doubled? Explain.

Help please 2 By what factor does the area change if the radius is doubled Explain class=

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LammettHash
LammettHash LammettHash
  • 02-06-2018
The area of a circle with radius [tex]r[/tex] is [tex]\pi r^2[/tex]. If the radius is doubled, then the area would become [tex]\pi(2r)^2=4\pi r^2[/tex]. So the area would be increased by a factor of 4.
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