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Need help with this geometry poblem

Need help with this geometry poblem-example-1
User Jcoppens
by
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1 Answer

5 votes

Answer:

17.5

Explanation:

Because the lines of the trapezoid are parallel that means that side ratios are similar mainly: BC/AB = DE/EF

Which yields: DE = CB * EF/ AB = 18.5 * 8.5 / 9 ~ 17.5

User Shivam
by
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