作业帮Consider the rectangle ABCD below .E is point on CD such tha
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Consider the rectangle ABCD below .E is point on CD such that AE=3,BE=4 and AE⊥BE.The area of rectangle ABCD is ________.（要有具体过程,）
思考下面的这个长方形ABCD.E是CD上的一点,且 AE=3,BE=4,AE⊥BE.求长方形ABCD的面积.
长方形ABCD的面积=ABXAD
AD=三角形ABE的高
三角形ABE的面积=1/2ABX高
所以长方形ABCD的面积=三角形ABE的面积X2
三角形ABE的面积=1/2AExBE
长方形ABCD的面积=AExBE=12
长方形ABCD的面积=ABXAD
AD=三角形ABE的高
三角形ABE的面积=1/2ABX高
所以长方形ABCD的面积=三角形ABE的面积X2
三角形ABE的面积=1/2AExBE
长方形ABCD的面积=AExBE=12
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