The cylindrical roof of greenhouse A will be constructed from aluminum. The aluminum cost $5.00 per square foot. What will be the cost of the minimum amount of aluminum needed to construct the roof? Give your answer to the nearest dollar.

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

what

sorry

step-by-step explanation:

sorry, but im pretty sure its a now that i look at it