A birdbath has a circumference of 50 degrees. When it is filled with water, the water surface has a circumference of 45". What is the probability of a drop of rain landing on the birdbath, but missing the water?

translate k to n and reflect across the line containing jk.

geometry: triangles

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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

overpriced

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