anonymous
  • anonymous
Circle A has a diameter of 8 inches, a circumference of 25.12 inches, and an area of 50.24 square inches. The diameter of circle B is 3 inches, the circumference is 9.42 inches, and the area is 7.065 square inches. Part A: Using the formula for circumference, solve for the value of pi for each circle. (4 points) Part B: Use the formula for area and solve for the value of pi for each circle. (4 points) Part C: What observation can you make about the value of pi for circles A and B? (2 points)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
@AlexandervonHumboldt2
AlexandervonHumboldt2
  • AlexandervonHumboldt2
ok so the formula for the curcimfence is 2*pi*r for the area is pi*r^2
AlexandervonHumboldt2
  • AlexandervonHumboldt2
circle A: circumference: 25.12 inches. thus 2*4*pi=25.12 pi=3.14 area: pi*4^2=50.24 pi=50.24/16=3.14

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AlexandervonHumboldt2
  • AlexandervonHumboldt2
circle B: circumference: 2*1.5*pi=9.42 pi=9.42/3=3.14 area: 1.5^2*pi=7.065 pi=3.14
AlexandervonHumboldt2
  • AlexandervonHumboldt2
The number Pi is always the same. In any circle, pi is equal to 22/7 which is approximately 3.14
AlexandervonHumboldt2
  • AlexandervonHumboldt2
did you understood @geny55 ?
anonymous
  • anonymous
yes @AlexandervonHumboldt2
anonymous
  • anonymous
@AlexandervonHumboldt2
anonymous
  • anonymous
so whats the answer for part A? @AlexandervonHumboldt2
AlexandervonHumboldt2
  • AlexandervonHumboldt2
circle A: circumference: 25.12 inches. thus 2*4*pi=25.12 pi=3.14 circumference: 2*1.5*pi=9.42 pi=9.42/3=3.14
anonymous
  • anonymous
does circle A mean Part A?
AlexandervonHumboldt2
  • AlexandervonHumboldt2
part b: area: pi*4^2=50.24 pi=50.24/16=3.14 area: 1.5^2*pi=7.065 pi=3.14
anonymous
  • anonymous
wait so part A is : circumference: 25.12 inches. thus 2*4*pi=25.12 pi=3.14 circumference: 2*1.5*pi=9.42 pi=9.42/3=3.14 @AlexandervonHumboldt2
AlexandervonHumboldt2
  • AlexandervonHumboldt2
yeah
anonymous
  • anonymous
ok .. part c?
AlexandervonHumboldt2
  • AlexandervonHumboldt2
The number Pi is always the same. In any circle, pi is equal to 22/7 which is approximately 3.14
anonymous
  • anonymous
ok thanks :)
AlexandervonHumboldt2
  • AlexandervonHumboldt2
np
anonymous
  • anonymous
are all of these answers in your own words?
AlexandervonHumboldt2
  • AlexandervonHumboldt2
of cousre!

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