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a. 2

b. 2(9+5) = 28

Step-by-step explanation:

18 = 3 × 3 × 2

or (3 power 2 × 2)

10=2×5

a . GCF = 2

b. factor out 2 out of both 10 and 18 which their sum is 28 and write every thing that is left in the prantheses .

answer

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step-by-step explanation:

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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