@robtobey
@Directrix
hi - do you like we calculi it together - ? first how many will be area of this square ?
81
yes so and area of this cyrcle ?
254.34
3.14*9^2
why 9^2 ? 9 is the side length and the diameter of circle not the radius
do you understand me ?
so the radius will be just the diameter halfed
9/2 not equal 3
3.14*4.5^2=63.585
ok than you have got this i believe you so this is area of circle but you need getting how many is the probability in percent that a randomly chosen point lies in the square but not in the circle - yes ? so you need getting area of square without area of circle - how many will be ?
just substract from area of square the area of circle
81-63,585= 17,415
17.415/81*100=21.5
so now for you get the right answer you need calculi this resulted 17,415 how many percent mean of area of the square - yes ?
21.5%
so 81 ----- 100% 17,415 --- x% --------------- x = 17,415*100/81 = ?%
yes so this is the right way to calculi and get the right answer sure hope you understand it now clearly yes ?
Yes, thanks !!
np was my pleasure and anytime bye bye
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