A quick question... I found that in OG Quantitative Review, DS question #95 statement 1 presented the area of a circle without the PI (250 square feet), and the question is to find the radius of the circle. Is this still possible in the actual GMAT format? 'cause if you try to find the radius from the area of the circle which is 250 ft^2 then you need to divide 250 by "PI" and PI, as far as I know, is an irracional number, so we could get a really good estimate but not the exact number. Am I wrong???
r = sqrt(250/PI) is sufficient to answer? yes...
and I though NO because of this.... 
Also, the question didn't ask for an aproximate... Guess it would be better if they always presented the PI sign next to the number to avoid this confusion..
r = sqrt(250/PI) is sufficient to answer? yes...
and I though NO because of this.... Also, the question didn't ask for an aproximate... Guess it would be better if they always presented the PI sign next to the number to avoid this confusion..
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