3 years ago

I need help?!?! I think it’s 9 ??!!

Mathematics

2 answers:

olganol [36]3 years ago

8 0

Answer:

C. 14

iedujdd

Step-by-step explanation:

i think i searched

natali 33 [55]3 years ago

7 0

Answer:

Step-by-step explanation:

Triangle DCE and ACD are similar (they share the angle at A, and since DE║CB, ∠D=∠C and ∠E=∠B (corresponding angles))

That means the side lengths are in ratio:

12/(8+12)=?/(6+?)

0.6(6+?)=?

3.6+0.6?=?

0.4?=3.6

?=9

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