Question

the area of circle of radius r is the same as the area of a square of side a. ratio of r to a is??

Answer 1

@perl

Answer 2

lol i don't know the answer

Answer 3

no

Answer 4

@taylor12344 @Isaiah99

Answer 5

ratio of r to a = area of circle/area of square

Answer 6

\[area of circle = \pi r^2\]
\[area of square = \ a^2\]
\[area of circle = area of square\]
\[\pi r^2 = a^2\]
now find r/a

Answer 7

the answer must be 1:1
a:rpi
a:r

Answer 8

@sangya21

Answer 9

\[r^2/a^2 = 1/\pi \]
\[r/a = \sqrt{1/\pi }\]

Answer 10

ok ty @sangya21

Answer 11

@satellite73