Question

find the ratio of the area of circle to the area of square whose sides of square is equal to the diameter of the circle​

Answer 1

Answer:

$\pi \div 2$

Answer 2

Answer:

area of circle

$\pi \: r {}^{2} \:$

area of square = side ²

side of square= diameter of circle ie 2r

ratio=

$\pi \: r {}^{2} \div (2r) {}^{2}$

pi × r²

-------------

4r²

r² will cancel out

ans pi by 4