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Nady [450]
3 years ago
14

Chords AB and CD intersect as sho below. Find the length of CD. Please answer with work, and please, no links.​

Mathematics
2 answers:
Lynna [10]3 years ago
8 0

Answer:

39

Step-by-step explanation:

The chords are equal to eachother. First multiply their divided lengths together:

9(3x-9)=21(x+1)

27x-81=21x+21

x=17

CD= 21+x+1

21+17+1=39

CD= 39

guapka [62]3 years ago
3 0

Answer:

no sé inglés ...... perdón....

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