How can you determine which property of equality is needed to isolate a variable and solve a given equation? Explain. A. Use inverse relationships to "undo" the operation. B. Use the same operation to "undo" the operation. C. Use the Distributive Property to isolate the variable. D. Substitute the known values and simplify.

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

the answer is ! ?

answer: 3.26019516

step-by-step explanation: