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In Figure, A B C D is a parallelogram. E...

In Figure, `A B C D` is a parallelogram. `E` and `F` are the mid-points of the sides `A B` and `C D` respectively. Prove that the line segments `A F` and `C E` triset (divide into three equal parts) the diagonal `B Ddot`

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RD SHARMA ENGLISH-QUADRILATERALS-All Questions
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  12. The opposite angles of a parallelogram are equal.

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  14. In a quadrilateral A B C D ,A O andB O are the bisectors of A/ and /B ...

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  17. A diagonal of parallelogram divides it into two congruent triangles.

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  18. In Figure, bisectors of /B and /D of quadrilateral A B C D meet C D...

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  19. In a quadrilateral A B C D ,\ C O\ a n d\ D O are the bisectors of /C\...

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