Mathematics
Junior High
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求解 拜託了!
,
ZACB=90° AC BC BEL CE ADL CE
於D。若AD=25公分, DE=17公分,求BE的長度。
,
,
B
E
C
D
A
2. 如附圖,△ABC為直角三角形,∠B=90°, AC的中垂線
與BC、AC分別交於E、D兩點,且AB=4, CE=5,
則△ABC的面積=?
B
E
A
DI
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