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In a quadrilateral ABCD, if AO and BO ar...

In a quadrilateral ABCD, if AO and BO are the bisectors `angleA` and `angleB` respectively, `angleC=70^@` and `angleD=30^@` then `angleAOB`=

A

`60^@`

B

`80^@`

C

`50^@`

D

`100^@`

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MODERN PUBLICATION-QUADRILATERALS-EXERCISE
  1. The bisectors of angles of a parallelogram from a :

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  2. The angles of a quadrilateral are in the ratio 3 : 4 : 5 : 6. The resp...

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  3. In a quadrilateral ABCD, if AO and BO are the bisectors angleA and ang...

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  4. The figure formed by joining the midpoints of the consecutive sides of...

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  5. The figure formed by joining the mid points of the adjacent sides of a...

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  6. The figure formed by parallelogram is 24^@ less than twice the smalles...

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  7. Find the measure of all the angles of a parallelogram, if one angle is...

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  8. The consecutive sides of a quadrilateral have

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  9. Which of the following quadrilateral is not a rhombus?

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  10. The bisectors of any two adjacent angles at a parallelgoram intersect ...

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  11. The figure formed by joining the mid points of the adjacent sides of a...

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  12. The figure formed by joining the mid points of the adjacent sides of a...

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  13. In one angle of a prallelogram is 24^@ less than the smallest angles, ...

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

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

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

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

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

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

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

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