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04 Nov 2019, 03:54
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B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
65%
(hard)
Question Stats:
62% (02:35) correct
38%
(02:45)
wrong
based on 289
sessions
History
Date
Time
Result
Not Attempted Yet
What is the length of hypotenuse k?
(A) 9
(B) 7.8
(C) 7
(D) 6.9
(E) 6.8
Are You Up For the Challenge: 700 Level Questions
Attachment:
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04 Nov 2019, 05:02
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AE= \(\sqrt{13^2-12^2}\)=5
BE=12.2 - 5=7.2
Triangle AEC is similar to Triangle BDE
Hence, \(\frac{EC}{CA}=\frac{DE}{BE}\)
\(\frac{13}{12}=\frac{DE}{7.2}\)
DE=7.8
BE=12.2 - 5=7.2
Triangle AEC is similar to Triangle BDE
Hence, \(\frac{EC}{CA}=\frac{DE}{BE}\)
\(\frac{13}{12}=\frac{DE}{7.2}\)
DE=7.8
Bunuel
Attachments
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General Discussion
