設這兩段為a,b
過D做AC垂線交於F。正方形DECF麵積等於1
1/2(a-1)X1+1+1/2(b-1)X1=12
a+b=6
設這兩段為a,b
過D做AC垂線交於F。正方形DECF麵積等於1
1/2(a-1)X1+1+1/2(b-1)X1=12
a+b=6
•
CE就是三角形ADC以AC為底的高
-嘚瑟一下-
♂
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04/12/2024 postreply
08:54:00
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