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प्रश्न
In the above figure, line AB || line CD || line EF, line l, and line m are its transversals. If AC = 6, CE = 9. BD = 8, then complete the following activity to find DF.
Activity :
`"AC"/"" = ""/"DF"` (Property of three parallel lines and their transversal)
∴ `6/9 = ""/"DF"`
∴ `"DF" = "___"`
उत्तर
`"AC"/"CE" = "BD"/"DF"`
∴ `6/9 = "8"/"DF"`
∴ `"DF" = (9 xx 8)/6`
= 12
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