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CBSE Class 10 Answered

Please solve question no 9 with proper explanation 
Asked by adityaahuja099 | 13 Nov, 2017, 07:38: PM
answered-by-expert Expert Answer
 
begin mathsize 16px style Draw space AQ space parallel to DF space meeting space the space lines space straight m space and space straight n space in space straight P space and space straight Q space respectively.
Since space AD parallel to PE space and space AP parallel to DE comma space ADEP space is space straight a space parallelogram.
rightwards double arrow AP equals DE
Also comma space PE parallel to QF space and space PQ parallel to EF comma space PQFE space is space straight a space parallelogram.
rightwards double arrow PQ equals EF
Now comma space in space triangle ACQ comma
BP parallel to CQ
rightwards double arrow AB over BC equals AP over PQ
rightwards double arrow AB over BC equals DE over EF
rightwards double arrow space AB over BC equals DE over EF equals 1 half end style
Answered by Rashmi Khot | 28 Nov, 2017, 02:27: PM

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