[問題] 國中數學幾何問題....
三角形ACE中有一內切圓, 在線段AC,CE上分別取B,D兩點, 使線段BD平行AE且與圓相切.
若三角形ACE周長減三角形BCD周長=14, 線段CD=8, 求BD=?
很急, 請大大們幫忙, 謝謝!!
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