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In Fig. . ABCD is a parallelogram and...

In Fig. .

ABCD is a parallelogram and E is the mid-point of side BC. If DE and AB, when produced meet at F, prove that AF = 2AB.

A

3AB

B

2AB

C

`3/2AB`

D

`5/4AB`

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MODERN PUBLICATION-QUADRILATERALS-EXERCISE
  1. In one angle of a prallelogram is 24^@ less than the smallest angles, ...

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  2. ABCD is a parallelogram and E and F are the centroids of triangle ABD ...

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  3. In Fig. . ABCD is a parallelogram and E is the mid-point of side BC...

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  4. If the degree measures of the angles of quadrilateral are 4x,7x,9x and...

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  5. The diagonal AC and BD of a rectangle ABCD intersect each other at P. ...

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  6. ABCD is a rhombus such that /ACB = 40^@. Then /ADB is

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  7. Diagonals of a parallelogram ABCD intersects at O. if angleBOC=90^@ an...

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  8. ABCD is a trapezium in which AB || DC. M and N are the mid-points of A...

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  9. D is a point on the side BC of a triangle ABC such that angleADC = ang...

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  10. In the figure ABCD is a parallelogram in which angleBDC=45^@ and angle...

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  11. In the figure ABCD is a llgm and E is the mid point of BC. Also DE and...

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  12. In a trapezium ABCD, if E and F be the mid points of the diagonals AC ...

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  13. Two parallelograms are on equal bases andbetween the same parallels. T...

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  14. If angles A, B, C and D of the quadrilateral ABCD, taken in order, are...

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  15. Three angles of a quadrilateral are 75^@, 90^@ and 75^@. The fourth an...

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  16. A diagonal of a rectangle is inclined to one side of the rectangle at ...

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  17. ABCD is a rhombus such that /ACB = 40^@. Then /ADB is

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  18. The quadrilateral formed by joining the mid-points of the sides of a q...

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  19. The quadrilateral formed by joining the mid-points of the sides of a q...

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  20. If angles A, B, C and D of the quadrilateral ABCD, taken in order, are...

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