4. Brandon divided his books and put them on 3 shelves. There were at least 21 books on each shelf. The inequality shown can be used to find x, the number of books Brandon
had.

Which inequality represents the solution set for this situation?

21 x 3= x

Step-by-step explanation:

ab: 2 n83b8eb7ebi. 8e yen in

geometry: triangles

solvers

lessons

answers archive

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+

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