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anonymous
 one year ago
The area of a circle is equal to the area of a square.
Which one is greater?
A. circumference of the circle
B. perimeter of the square
anonymous
 one year ago
The area of a circle is equal to the area of a square. Which one is greater? A. circumference of the circle B. perimeter of the square

This Question is Closed

phi
 one year ago
Best ResponseYou've already chosen the best response.2you can figure it out, but it is "wellknown" (to those who know it well) that the shortest perimeter enclosing a fixed area is that of a circle.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0What does that mean?

dumbcow
 one year ago
Best ResponseYou've already chosen the best response.0it means the circle will always have the smallest perimeter compared to another shape

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so i don't have to go through steps to figure this out? The circle always has the smallest circumference/perimeter compared to every shape out there?

phi
 one year ago
Best ResponseYou've already chosen the best response.2if you did not know that, you start by saying \[ \pi r^2 = s^2 \\ s= r \sqrt{\pi} \] the perimeter of a circle vs square is \[ 2 \pi r \ vs \ 4s \\2 \pi r \ vs\ 4r \sqrt{\pi} \] divide both sides by 2r sqr(pi) \[ \sqrt{\pi} \ vs\ 2 \] pi is about 3.14 and its square root is less than the square root of 4 thus the perimeter of the circle is shorter

phi
 one year ago
Best ResponseYou've already chosen the best response.2** compared to every shape out there?*** yes, that have the same area

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0got it okay thanks phi!!!! <333
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