Diagonal \( A C \) of a rectangle \( A B C D \) is produced to the point \( E \) such that \( A ... VIDEO
Diagonal \( A C \) of a rectangle \( A B C D \) is produced to the point \( E \) such that \( A C: C E=2: 1, A B=8 \mathrm{~cm} \) and \( B C=6 \mathrm{~m} \). The length of \( D E \) is
(a) \( 2 \sqrt{19} \mathrm{~cm} \)
(b) \( 15 \mathrm{~cm} \)
(c) \( 3 \sqrt{17} \mathrm{~cm} \)
(d) \( 13 \mathrm{~cm} \)
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