Given \small \Delta ABC\sim\Delta DEC, could you use the proportion \small \frac{9}{10}=\frac{8.75}{EC} to determine the measure of EC? If yes, type yes and solve for EC. (Must type yes and give value of EC) If no, type no and rewrite the proportion and then solve for EC. (Must type no, give the correct proportion, and the value of EC)

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step-by-step explanation:

i dont know sorry

step-by-step explanation:

geometry: triangles

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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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