She counted 9 maple trees 75 trees later in the year there was a bug problem and many trees. the kids were planted to make sure there was the same number of trees as before the bug problem the new ratio of the number of maple trees to the number of occasions 31 after planting new trees there were 132 inches how many more maple trees were in the woodlot before the bug problem then after the bug problem

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+

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