Camille subtracted 3,256 from 6,000 and got 9,256. which correctly explains the mistake that camille made and gives the correct answer? a. camille added instead of subtracting. the correct answer is 2,744. b. camille added instead of subtracting. the correct answer is 3,256. c. camille forgot to regroup. the correct answer is 3,256. d. camille forgot to regroup. the correct answer is 3,854.

geometry: triangles

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lessons

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call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584