Mathematics
Junior High
Resolved
求解
帥
73. ( )如圖,美琪利用三角形的相似性質來測
量河流的寬度,已知他測得AB=10公
尺,CD=4公尺,AC=15.6公尺,則
河寬DE為多少公尺?
A
15.6
19
B
> TE = 6.24.
E
(A)8.6 (B)9.2 (C)9.6 (D)10.8
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