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| 1. |
In Fig. 9.15, ABCD is a parallelogram, AE DCand CF丄AD. If AB = 16 cm, AE = 8 cm andCF 10 cm, find AD1.If E,FG and H are respectively the mid-points ofthe sides of a parallelogram ABCD, show thatar (EFGH)ar (ABCD). |
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