2 years ago

What is the length of DE?

Mathematics

2 answers:

Andrew [12]2 years ago

7 0

Answer:

The length of DE is 5 because they are similar triangle .

Drupady [299]2 years ago

4 0

<h3>Answer: B. 6</h3>

Explanation:

The triangles are similar. We can use the SAS similarity theorem to prove that claim.

Because the triangles are similar, the corresponding sides form a proportion like shown below

12/8 = 9/x

12x = 8*9 ... cross multiply

12x = 72

x = 72/12

x = 6 which is why the answer is choice B

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